vendor/guzzlehttp/guzzle/src/UriTemplate.php

+<?php
+namespace GuzzleHttp;
+
+/**
+ * Expands URI templates. Userland implementation of PECL uri_template.
+ *
+ * @link http://tools.ietf.org/html/rfc6570
+ */
+class UriTemplate
+{
+    /** @var string URI template */
+    private $template;
+
+    /** @var array Variables to use in the template expansion */
+    private $variables;
+
+    /** @var array Hash for quick operator lookups */
+    private static $operatorHash = [
+        ''  => ['prefix' => '',  'joiner' => ',', 'query' => false],
+        '+' => ['prefix' => '',  'joiner' => ',', 'query' => false],
+        '#' => ['prefix' => '#', 'joiner' => ',', 'query' => false],
+        '.' => ['prefix' => '.', 'joiner' => '.', 'query' => false],
+        '/' => ['prefix' => '/', 'joiner' => '/', 'query' => false],
+        ';' => ['prefix' => ';', 'joiner' => ';', 'query' => true],
+        '?' => ['prefix' => '?', 'joiner' => '&', 'query' => true],
+        '&' => ['prefix' => '&', 'joiner' => '&', 'query' => true]
+    ];
+
+    /** @var array Delimiters */
+    private static $delims = [':', '/', '?', '#', '[', ']', '@', '!', '$',
+        '&', '\'', '(', ')', '*', '+', ',', ';', '='];
+
+    /** @var array Percent encoded delimiters */
+    private static $delimsPct = ['%3A', '%2F', '%3F', '%23', '%5B', '%5D',
+        '%40', '%21', '%24', '%26', '%27', '%28', '%29', '%2A', '%2B', '%2C',
+        '%3B', '%3D'];
+
+    public function expand($template, array $variables)
+    {
+        if (false === strpos($template, '{')) {
+            return $template;
+        }
+
+        $this->template = $template;
+        $this->variables = $variables;
+
+        return preg_replace_callback(
+            '/\{([^\}]+)\}/',
+            [$this, 'expandMatch'],
+            $this->template
+        );
+    }
+
+    /**
+     * Parse an expression into parts
+     *
+     * @param string $expression Expression to parse
+     *
+     * @return array Returns an associative array of parts
+     */
+    private function parseExpression($expression)
+    {
+        $result = [];
+
+        if (isset(self::$operatorHash[$expression[0]])) {
+            $result['operator'] = $expression[0];
+            $expression = substr($expression, 1);
+        } else {
+            $result['operator'] = '';
+        }
+
+        foreach (explode(',', $expression) as $value) {
+            $value = trim($value);
+            $varspec = [];
+            if ($colonPos = strpos($value, ':')) {
+                $varspec['value'] = substr($value, 0, $colonPos);
+                $varspec['modifier'] = ':';
+                $varspec['position'] = (int) substr($value, $colonPos + 1);
+            } elseif (substr($value, -1) === '*') {
+                $varspec['modifier'] = '*';
+                $varspec['value'] = substr($value, 0, -1);
+            } else {
+                $varspec['value'] = (string) $value;
+                $varspec['modifier'] = '';
+            }
+            $result['values'][] = $varspec;
+        }
+
+        return $result;
+    }
+
+    /**
+     * Process an expansion
+     *
+     * @param array $matches Matches met in the preg_replace_callback
+     *
+     * @return string Returns the replacement string
+     */
+    private function expandMatch(array $matches)
+    {
+        static $rfc1738to3986 = ['+' => '%20', '%7e' => '~'];
+
+        $replacements = [];
+        $parsed = self::parseExpression($matches[1]);
+        $prefix = self::$operatorHash[$parsed['operator']]['prefix'];
+        $joiner = self::$operatorHash[$parsed['operator']]['joiner'];
+        $useQuery = self::$operatorHash[$parsed['operator']]['query'];
+
+        foreach ($parsed['values'] as $value) {
+            if (!isset($this->variables[$value['value']])) {
+                continue;
+            }
+
+            $variable = $this->variables[$value['value']];
+            $actuallyUseQuery = $useQuery;
+            $expanded = '';
+
+            if (is_array($variable)) {
+                $isAssoc = $this->isAssoc($variable);
+                $kvp = [];
+                foreach ($variable as $key => $var) {
+                    if ($isAssoc) {
+                        $key = rawurlencode($key);
+                        $isNestedArray = is_array($var);
+                    } else {
+                        $isNestedArray = false;
+                    }
+
+                    if (!$isNestedArray) {
+                        $var = rawurlencode($var);
+                        if ($parsed['operator'] === '+' ||
+                            $parsed['operator'] === '#'
+                        ) {
+                            $var = $this->decodeReserved($var);
+                        }
+                    }
+
+                    if ($value['modifier'] === '*') {
+                        if ($isAssoc) {
+                            if ($isNestedArray) {
+                                // Nested arrays must allow for deeply nested
+                                // structures.
+                                $var = strtr(
+                                    http_build_query([$key => $var]),
+                                    $rfc1738to3986
+                                );
+                            } else {
+                                $var = $key . '=' . $var;
+                            }
+                        } elseif ($key > 0 && $actuallyUseQuery) {
+                            $var = $value['value'] . '=' . $var;
+                        }
+                    }
+
+                    $kvp[$key] = $var;
+                }
+
+                if (empty($variable)) {
+                    $actuallyUseQuery = false;
+                } elseif ($value['modifier'] === '*') {
+                    $expanded = implode($joiner, $kvp);
+                    if ($isAssoc) {
+                        // Don't prepend the value name when using the explode
+                        // modifier with an associative array.
+                        $actuallyUseQuery = false;
+                    }
+                } else {
+                    if ($isAssoc) {
+                        // When an associative array is encountered and the
+                        // explode modifier is not set, then the result must be
+                        // a comma separated list of keys followed by their
+                        // respective values.
+                        foreach ($kvp as $k => &$v) {
+                            $v = $k . ',' . $v;
+                        }
+                    }
+                    $expanded = implode(',', $kvp);
+                }
+            } else {
+                if ($value['modifier'] === ':') {
+                    $variable = substr($variable, 0, $value['position']);
+                }
+                $expanded = rawurlencode($variable);
+                if ($parsed['operator'] === '+' || $parsed['operator'] === '#') {
+                    $expanded = $this->decodeReserved($expanded);
+                }
+            }
+
+            if ($actuallyUseQuery) {
+                if (!$expanded && $joiner !== '&') {
+                    $expanded = $value['value'];
+                } else {
+                    $expanded = $value['value'] . '=' . $expanded;
+                }
+            }
+
+            $replacements[] = $expanded;
+        }
+
+        $ret = implode($joiner, $replacements);
+        if ($ret && $prefix) {
+            return $prefix . $ret;
+        }
+
+        return $ret;
+    }
+
+    /**
+     * Determines if an array is associative.
+     *
+     * This makes the assumption that input arrays are sequences or hashes.
+     * This assumption is a tradeoff for accuracy in favor of speed, but it
+     * should work in almost every case where input is supplied for a URI
+     * template.
+     *
+     * @param array $array Array to check
+     *
+     * @return bool
+     */
+    private function isAssoc(array $array)
+    {
+        return $array && array_keys($array)[0] !== 0;
+    }
+
+    /**
+     * Removes percent encoding on reserved characters (used with + and #
+     * modifiers).
+     *
+     * @param string $string String to fix
+     *
+     * @return string
+     */
+    private function decodeReserved($string)
+    {
+        return str_replace(self::$delimsPct, self::$delims, $string);
+    }
+}

vendor/guzzlehttp/guzzle/src/Utils.php

+<?php
+namespace GuzzleHttp;
+
+use GuzzleHttp\Exception\InvalidArgumentException;
+use Psr\Http\Message\UriInterface;
+use Symfony\Polyfill\Intl\Idn\Idn;
+
+final class Utils
+{
+    /**
+     * Wrapper for the hrtime() or microtime() functions
+     * (depending on the PHP version, one of the two is used)
+     *
+     * @return float|mixed UNIX timestamp
+     *
+     * @internal
+     */
+    public static function currentTime()
+    {
+        return function_exists('hrtime') ? hrtime(true) / 1e9 : microtime(true);
+    }
+
+    /**
+     * @param int $options
+     *
+     * @return UriInterface
+     * @throws InvalidArgumentException
+     *
+     * @internal
+     */
+    public static function idnUriConvert(UriInterface $uri, $options = 0)
+    {
+        if ($uri->getHost()) {
+            $asciiHost = self::idnToAsci($uri->getHost(), $options, $info);
+            if ($asciiHost === false) {
+                $errorBitSet = isset($info['errors']) ? $info['errors'] : 0;
+
+                $errorConstants = array_filter(array_keys(get_defined_constants()), function ($name) {
+                    return substr($name, 0, 11) === 'IDNA_ERROR_';
+                });
+
+                $errors = [];
+                foreach ($errorConstants as $errorConstant) {
+                    if ($errorBitSet & constant($errorConstant)) {
+                        $errors[] = $errorConstant;
+                    }
+                }
+
+                $errorMessage = 'IDN conversion failed';
+                if ($errors) {
+                    $errorMessage .= ' (errors: ' . implode(', ', $errors) . ')';
+                }
+
+                throw new InvalidArgumentException($errorMessage);
+            } else {
+                if ($uri->getHost() !== $asciiHost) {
+                    // Replace URI only if the ASCII version is different
+                    $uri = $uri->withHost($asciiHost);
+                }
+            }
+        }
+
+        return $uri;
+    }
+
+    /**
+     * @param string $domain
+     * @param int    $options
+     * @param array  $info
+     *
+     * @return string|false
+     */
+    private static function idnToAsci($domain, $options, &$info = [])
+    {
+        if (\preg_match('%^[ -~]+$%', $domain) === 1) {
+            return $domain;
+        }
+
+        if (\extension_loaded('intl') && defined('INTL_IDNA_VARIANT_UTS46')) {
+            return \idn_to_ascii($domain, $options, INTL_IDNA_VARIANT_UTS46, $info);
+        }
+
+        /*
+         * The Idn class is marked as @internal. Verify that class and method exists.
+         */
+        if (method_exists(Idn::class, 'idn_to_ascii')) {
+            return Idn::idn_to_ascii($domain, $options, Idn::INTL_IDNA_VARIANT_UTS46, $info);
+        }
+
+        throw new \RuntimeException('ext-intl or symfony/polyfill-intl-idn not loaded or too old');
+    }
+}

vendor/guzzlehttp/guzzle/src/functions.php

+<?php
+namespace GuzzleHttp;
+
+use GuzzleHttp\Handler\CurlHandler;
+use GuzzleHttp\Handler\CurlMultiHandler;
+use GuzzleHttp\Handler\Proxy;
+use GuzzleHttp\Handler\StreamHandler;
+
+/**
+ * Expands a URI template
+ *
+ * @param string $template  URI template
+ * @param array  $variables Template variables
+ *
+ * @return string
+ */
+function uri_template($template, array $variables)
+{
+    if (extension_loaded('uri_template')) {
+        // @codeCoverageIgnoreStart
+        return \uri_template($template, $variables);
+        // @codeCoverageIgnoreEnd
+    }
+
+    static $uriTemplate;
+    if (!$uriTemplate) {
+        $uriTemplate = new UriTemplate();
+    }
+
+    return $uriTemplate->expand($template, $variables);
+}
+
+/**
+ * Debug function used to describe the provided value type and class.
+ *
+ * @param mixed $input
+ *
+ * @return string Returns a string containing the type of the variable and
+ *                if a class is provided, the class name.
+ */
+function describe_type($input)
+{
+    switch (gettype($input)) {
+        case 'object':
+            return 'object(' . get_class($input) . ')';
+        case 'array':
+            return 'array(' . count($input) . ')';
+        default:
+            ob_start();
+            var_dump($input);
+            // normalize float vs double
+            return str_replace('double(', 'float(', rtrim(ob_get_clean()));
+    }
+}
+
+/**
+ * Parses an array of header lines into an associative array of headers.
+ *
+ * @param iterable $lines Header lines array of strings in the following
+ *                     format: "Name: Value"
+ * @return array
+ */
+function headers_from_lines($lines)
+{
+    $headers = [];
+
+    foreach ($lines as $line) {
+        $parts = explode(':', $line, 2);
+        $headers[trim($parts[0])][] = isset($parts[1])
+            ? trim($parts[1])
+            : null;
+    }
+
+    return $headers;
+}
+
+/**
+ * Returns a debug stream based on the provided variable.
+ *
+ * @param mixed $value Optional value
+ *
+ * @return resource
+ */
+function debug_resource($value = null)
+{
+    if (is_resource($value)) {
+        return $value;
+    } elseif (defined('STDOUT')) {
+        return STDOUT;
+    }
+
+    return fopen('php://output', 'w');
+}
+
+/**
+ * Chooses and creates a default handler to use based on the environment.
+ *
+ * The returned handler is not wrapped by any default middlewares.
+ *
+ * @return callable Returns the best handler for the given system.
+ * @throws \RuntimeException if no viable Handler is available.
+ */
+function choose_handler()
+{
+    $handler = null;
+    if (function_exists('curl_multi_exec') && function_exists('curl_exec')) {
+        $handler = Proxy::wrapSync(new CurlMultiHandler(), new CurlHandler());
+    } elseif (function_exists('curl_exec')) {
+        $handler = new CurlHandler();
+    } elseif (function_exists('curl_multi_exec')) {
+        $handler = new CurlMultiHandler();
+    }
+
+    if (ini_get('allow_url_fopen')) {
+        $handler = $handler
+            ? Proxy::wrapStreaming($handler, new StreamHandler())
+            : new StreamHandler();
+    } elseif (!$handler) {
+        throw new \RuntimeException('GuzzleHttp requires cURL, the '
+            . 'allow_url_fopen ini setting, or a custom HTTP handler.');
+    }
+
+    return $handler;
+}
+
+/**
+ * Get the default User-Agent string to use with Guzzle
+ *
+ * @return string
+ */
+function default_user_agent()
+{
+    static $defaultAgent = '';
+
+    if (!$defaultAgent) {
+        $defaultAgent = 'GuzzleHttp/' . Client::VERSION;
+        if (extension_loaded('curl') && function_exists('curl_version')) {
+            $defaultAgent .= ' curl/' . \curl_version()['version'];
+        }
+        $defaultAgent .= ' PHP/' . PHP_VERSION;
+    }
+
+    return $defaultAgent;
+}
+
+/**
+ * Returns the default cacert bundle for the current system.
+ *
+ * First, the openssl.cafile and curl.cainfo php.ini settings are checked.
+ * If those settings are not configured, then the common locations for
+ * bundles found on Red Hat, CentOS, Fedora, Ubuntu, Debian, FreeBSD, OS X
+ * and Windows are checked. If any of these file locations are found on
+ * disk, they will be utilized.
+ *
+ * Note: the result of this function is cached for subsequent calls.
+ *
+ * @return string
+ * @throws \RuntimeException if no bundle can be found.
+ */
+function default_ca_bundle()
+{
+    static $cached = null;
+    static $cafiles = [
+        // Red Hat, CentOS, Fedora (provided by the ca-certificates package)
+        '/etc/pki/tls/certs/ca-bundle.crt',
+        // Ubuntu, Debian (provided by the ca-certificates package)
+        '/etc/ssl/certs/ca-certificates.crt',
+        // FreeBSD (provided by the ca_root_nss package)
+        '/usr/local/share/certs/ca-root-nss.crt',
+        // SLES 12 (provided by the ca-certificates package)
+        '/var/lib/ca-certificates/ca-bundle.pem',
+        // OS X provided by homebrew (using the default path)
+        '/usr/local/etc/openssl/cert.pem',
+        // Google app engine
+        '/etc/ca-certificates.crt',
+        // Windows?
+        'C:\\windows\\system32\\curl-ca-bundle.crt',
+        'C:\\windows\\curl-ca-bundle.crt',
+    ];
+
+    if ($cached) {
+        return $cached;
+    }
+
+    if ($ca = ini_get('openssl.cafile')) {
+        return $cached = $ca;
+    }
+
+    if ($ca = ini_get('curl.cainfo')) {
+        return $cached = $ca;
+    }
+
+    foreach ($cafiles as $filename) {
+        if (file_exists($filename)) {
+            return $cached = $filename;
+        }
+    }
+
+    throw new \RuntimeException(
+        <<< EOT
+No system CA bundle could be found in any of the the common system locations.
+PHP versions earlier than 5.6 are not properly configured to use the system's
+CA bundle by default. In order to verify peer certificates, you will need to
+supply the path on disk to a certificate bundle to the 'verify' request
+option: http://docs.guzzlephp.org/en/latest/clients.html#verify. If you do not
+need a specific certificate bundle, then Mozilla provides a commonly used CA
+bundle which can be downloaded here (provided by the maintainer of cURL):
+https://raw.githubusercontent.com/bagder/ca-bundle/master/ca-bundle.crt. Once
+you have a CA bundle available on disk, you can set the 'openssl.cafile' PHP
+ini setting to point to the path to the file, allowing you to omit the 'verify'
+request option. See http://curl.haxx.se/docs/sslcerts.html for more
+information.
+EOT
+    );
+}
+
+/**
+ * Creates an associative array of lowercase header names to the actual
+ * header casing.
+ *
+ * @param array $headers
+ *
+ * @return array
+ */
+function normalize_header_keys(array $headers)
+{
+    $result = [];
+    foreach (array_keys($headers) as $key) {
+        $result[strtolower($key)] = $key;
+    }
+
+    return $result;
+}
+
+/**
+ * Returns true if the provided host matches any of the no proxy areas.
+ *
+ * This method will strip a port from the host if it is present. Each pattern
+ * can be matched with an exact match (e.g., "foo.com" == "foo.com") or a
+ * partial match: (e.g., "foo.com" == "baz.foo.com" and ".foo.com" ==
+ * "baz.foo.com", but ".foo.com" != "foo.com").
+ *
+ * Areas are matched in the following cases:
+ * 1. "*" (without quotes) always matches any hosts.
+ * 2. An exact match.
+ * 3. The area starts with "." and the area is the last part of the host. e.g.
+ *    '.mit.edu' will match any host that ends with '.mit.edu'.
+ *
+ * @param string $host         Host to check against the patterns.
+ * @param array  $noProxyArray An array of host patterns.
+ *
+ * @return bool
+ */
+function is_host_in_noproxy($host, array $noProxyArray)
+{
+    if (strlen($host) === 0) {
+        throw new \InvalidArgumentException('Empty host provided');
+    }
+
+    // Strip port if present.
+    if (strpos($host, ':')) {
+        $host = explode($host, ':', 2)[0];
+    }
+
+    foreach ($noProxyArray as $area) {
+        // Always match on wildcards.
+        if ($area === '*') {
+            return true;
+        } elseif (empty($area)) {
+            // Don't match on empty values.
+            continue;
+        } elseif ($area === $host) {
+            // Exact matches.
+            return true;
+        } else {
+            // Special match if the area when prefixed with ".". Remove any
+            // existing leading "." and add a new leading ".".
+            $area = '.' . ltrim($area, '.');
+            if (substr($host, -(strlen($area))) === $area) {
+                return true;
+            }
+        }
+    }
+
+    return false;
+}
+
+/**
+ * Wrapper for json_decode that throws when an error occurs.
+ *
+ * @param string $json    JSON data to parse
+ * @param bool $assoc     When true, returned objects will be converted
+ *                        into associative arrays.
+ * @param int    $depth   User specified recursion depth.
+ * @param int    $options Bitmask of JSON decode options.
+ *
+ * @return mixed
+ * @throws Exception\InvalidArgumentException if the JSON cannot be decoded.
+ * @link http://www.php.net/manual/en/function.json-decode.php
+ */
+function json_decode($json, $assoc = false, $depth = 512, $options = 0)
+{
+    $data = \json_decode($json, $assoc, $depth, $options);
+    if (JSON_ERROR_NONE !== json_last_error()) {
+        throw new Exception\InvalidArgumentException(
+            'json_decode error: ' . json_last_error_msg()
+        );
+    }
+
+    return $data;
+}
+
+/**
+ * Wrapper for JSON encoding that throws when an error occurs.
+ *
+ * @param mixed $value   The value being encoded
+ * @param int    $options JSON encode option bitmask
+ * @param int    $depth   Set the maximum depth. Must be greater than zero.
+ *
+ * @return string
+ * @throws Exception\InvalidArgumentException if the JSON cannot be encoded.
+ * @link http://www.php.net/manual/en/function.json-encode.php
+ */
+function json_encode($value, $options = 0, $depth = 512)
+{
+    $json = \json_encode($value, $options, $depth);
+    if (JSON_ERROR_NONE !== json_last_error()) {
+        throw new Exception\InvalidArgumentException(
+            'json_encode error: ' . json_last_error_msg()
+        );
+    }
+
+    return $json;
+}

vendor/guzzlehttp/guzzle/src/functions_include.php

+<?php
+
+// Don't redefine the functions if included multiple times.
+if (!function_exists('GuzzleHttp\uri_template')) {
+    require __DIR__ . '/functions.php';
+}

vendor/guzzlehttp/promises/.php_cs.dist

+<?php
+
+$config = PhpCsFixer\Config::create()
+    ->setRiskyAllowed(true)
+    ->setRules([
+        '@PSR2' => true,
+        'array_syntax' => ['syntax' => 'short'],
+        'binary_operator_spaces' => ['operators' => ['=>' => null]],
+        'blank_line_after_opening_tag' => true,
+        'class_attributes_separation' => ['elements' => ['method']],
+        'compact_nullable_typehint' => true,
+        'concat_space' => ['spacing' => 'one'],
+        'declare_equal_normalize' => ['space' => 'none'],
+        'declare_strict_types' => false,
+        'dir_constant' => true,
+        'final_static_access' => true,
+        'fully_qualified_strict_types' => true,
+        'function_to_constant' => true,
+        'function_typehint_space' => true,
+        'header_comment' => false,
+        'is_null' => ['use_yoda_style' => false],
+        'list_syntax' => ['syntax' => 'short'],
+        'lowercase_cast' => true,
+        'magic_method_casing' => true,
+        'modernize_types_casting' => true,
+        'multiline_comment_opening_closing' => true,
+        //'native_constant_invocation' => true,
+        'no_alias_functions' => true,
+        'no_alternative_syntax' => true,
+        'no_blank_lines_after_phpdoc' => true,
+        'no_empty_comment' => true,
+        'no_empty_phpdoc' => true,
+        'no_extra_blank_lines' => true,
+        'no_leading_import_slash' => true,
+        'no_leading_namespace_whitespace' => true,
+        'no_spaces_around_offset' => true,
+        'no_superfluous_phpdoc_tags' => ['allow_mixed' => true],
+        'no_trailing_comma_in_singleline_array' => true,
+        'no_unneeded_control_parentheses' => true,
+        'no_unset_cast' => true,
+        'no_unused_imports' => true,
+        'no_useless_else' => true,
+        'no_useless_return' => true,
+        'no_whitespace_in_blank_line' => true,
+        'normalize_index_brace' => true,
+        'ordered_imports' => true,
+        'php_unit_construct' => true,
+        'php_unit_dedicate_assert' => ['target' => 'newest'],
+        'php_unit_dedicate_assert_internal_type' => ['target' => 'newest'],
+        'php_unit_expectation' => ['target' => 'newest'],
+        'php_unit_mock' => ['target' => 'newest'],
+        'php_unit_mock_short_will_return' => true,
+        'php_unit_no_expectation_annotation' => ['target' => 'newest'],
+        'php_unit_test_annotation' => ['style' => 'prefix'],
+        //'php_unit_test_case_static_method_calls' => ['call_type' => 'self'],
+        'phpdoc_align' => ['align' => 'vertical'],
+        //'phpdoc_line_span' => ['method' => 'multi', 'property' => 'multi'],
+        'phpdoc_no_package' => true,
+        'phpdoc_no_useless_inheritdoc' => true,
+        'phpdoc_scalar' => true,
+        'phpdoc_separation' => true,
+        'phpdoc_single_line_var_spacing' => true,
+        'phpdoc_trim' => true,
+        'phpdoc_trim_consecutive_blank_line_separation' => true,
+        'phpdoc_types' => true,
+        'phpdoc_types_order' => ['null_adjustment' => 'always_last', 'sort_algorithm' => 'none'],
+        'phpdoc_var_without_name' => true,
+        'return_assignment' => true,
+        'short_scalar_cast' => true,
+        'single_trait_insert_per_statement' => true,
+        'standardize_not_equals' => true,
+        //'static_lambda' => true,
+        'ternary_to_null_coalescing' => true,
+        'trim_array_spaces' => true,
+        'visibility_required' => true,
+        'yoda_style' => false,
+        // 'native_function_invocation' => true,
+        'braces' => ['allow_single_line_closure'=>true],
+    ])
+    ->setFinder(
+        PhpCsFixer\Finder::create()
+            ->in(__DIR__.'/src')
+            ->in(__DIR__.'/tests')
+            ->name('*.php')
+    )
+;
+
+return $config;

vendor/guzzlehttp/promises/CHANGELOG.md

+# CHANGELOG
+
+
+## 1.4.0 - 2020-09-30
+
+### Added
+
+- Support for PHP 8
+- Optional `$recursive` flag to `all`
+- Replaced functions by static methods
+
+### Fixed
+
+- Fix empty `each` processing
+- Fix promise handling for Iterators of non-unique keys
+- Fixed `method_exists` crashes on PHP 8
+- Memory leak on exceptions
+
+
+## 1.3.1 - 2016-12-20
+
+### Fixed
+
+- `wait()` foreign promise compatibility
+
+
+## 1.3.0 - 2016-11-18
+
+### Added
+
+- Adds support for custom task queues.
+
+### Fixed
+
+- Fixed coroutine promise memory leak.
+
+
+## 1.2.0 - 2016-05-18
+
+### Changed
+
+- Update to now catch `\Throwable` on PHP 7+
+
+
+## 1.1.0 - 2016-03-07
+
+### Changed
+
+- Update EachPromise to prevent recurring on a iterator when advancing, as this
+  could trigger fatal generator errors.
+- Update Promise to allow recursive waiting without unwrapping exceptions.
+
+
+## 1.0.3 - 2015-10-15
+
+### Changed
+
+- Update EachPromise to immediately resolve when the underlying promise iterator
+  is empty. Previously, such a promise would throw an exception when its `wait`
+  function was called.
+
+
+## 1.0.2 - 2015-05-15
+
+### Changed
+
+- Conditionally require functions.php.
+
+
+## 1.0.1 - 2015-06-24
+
+### Changed
+
+- Updating EachPromise to call next on the underlying promise iterator as late
+  as possible to ensure that generators that generate new requests based on
+  callbacks are not iterated until after callbacks are invoked.
+
+
+## 1.0.0 - 2015-05-12
+
+- Initial release

vendor/guzzlehttp/promises/LICENSE

+Copyright (c) 2015-2016 Michael Dowling, https://github.com/mtdowling <mtdowling@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/guzzlehttp/promises/Makefile

+all: clean test
+
+test:
+	vendor/bin/phpunit
+
+coverage:
+	vendor/bin/phpunit --coverage-html=artifacts/coverage
+
+view-coverage:
+	open artifacts/coverage/index.html
+
+clean:
+	rm -rf artifacts/*

vendor/guzzlehttp/promises/README.md

+# Guzzle Promises
+
+[Promises/A+](https://promisesaplus.com/) implementation that handles promise
+chaining and resolution iteratively, allowing for "infinite" promise chaining
+while keeping the stack size constant. Read [this blog post](https://blog.domenic.me/youre-missing-the-point-of-promises/)
+for a general introduction to promises.
+
+- [Features](#features)
+- [Quick start](#quick-start)
+- [Synchronous wait](#synchronous-wait)
+- [Cancellation](#cancellation)
+- [API](#api)
+  - [Promise](#promise)
+  - [FulfilledPromise](#fulfilledpromise)
+  - [RejectedPromise](#rejectedpromise)
+- [Promise interop](#promise-interop)
+- [Implementation notes](#implementation-notes)
+
+
+# Features
+
+- [Promises/A+](https://promisesaplus.com/) implementation.
+- Promise resolution and chaining is handled iteratively, allowing for
+  "infinite" promise chaining.
+- Promises have a synchronous `wait` method.
+- Promises can be cancelled.
+- Works with any object that has a `then` function.
+- C# style async/await coroutine promises using
+  `GuzzleHttp\Promise\Coroutine::of()`.
+
+
+# Quick start
+
+A *promise* represents the eventual result of an asynchronous operation. The
+primary way of interacting with a promise is through its `then` method, which
+registers callbacks to receive either a promise's eventual value or the reason
+why the promise cannot be fulfilled.
+
+
+## Callbacks
+
+Callbacks are registered with the `then` method by providing an optional 
+`$onFulfilled` followed by an optional `$onRejected` function.
+
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$promise->then(
+    // $onFulfilled
+    function ($value) {
+        echo 'The promise was fulfilled.';
+    },
+    // $onRejected
+    function ($reason) {
+        echo 'The promise was rejected.';
+    }
+);
+```
+
+*Resolving* a promise means that you either fulfill a promise with a *value* or
+reject a promise with a *reason*. Resolving a promises triggers callbacks
+registered with the promises's `then` method. These callbacks are triggered
+only once and in the order in which they were added.
+
+
+## Resolving a promise
+
+Promises are fulfilled using the `resolve($value)` method. Resolving a promise
+with any value other than a `GuzzleHttp\Promise\RejectedPromise` will trigger
+all of the onFulfilled callbacks (resolving a promise with a rejected promise
+will reject the promise and trigger the `$onRejected` callbacks).
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$promise
+    ->then(function ($value) {
+        // Return a value and don't break the chain
+        return "Hello, " . $value;
+    })
+    // This then is executed after the first then and receives the value
+    // returned from the first then.
+    ->then(function ($value) {
+        echo $value;
+    });
+
+// Resolving the promise triggers the $onFulfilled callbacks and outputs
+// "Hello, reader."
+$promise->resolve('reader.');
+```
+
+
+## Promise forwarding
+
+Promises can be chained one after the other. Each then in the chain is a new
+promise. The return value of a promise is what's forwarded to the next
+promise in the chain. Returning a promise in a `then` callback will cause the
+subsequent promises in the chain to only be fulfilled when the returned promise
+has been fulfilled. The next promise in the chain will be invoked with the
+resolved value of the promise.
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$nextPromise = new Promise();
+
+$promise
+    ->then(function ($value) use ($nextPromise) {
+        echo $value;
+        return $nextPromise;
+    })
+    ->then(function ($value) {
+        echo $value;
+    });
+
+// Triggers the first callback and outputs "A"
+$promise->resolve('A');
+// Triggers the second callback and outputs "B"
+$nextPromise->resolve('B');
+```
+
+## Promise rejection
+
+When a promise is rejected, the `$onRejected` callbacks are invoked with the
+rejection reason.
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$promise->then(null, function ($reason) {
+    echo $reason;
+});
+
+$promise->reject('Error!');
+// Outputs "Error!"
+```
+
+## Rejection forwarding
+
+If an exception is thrown in an `$onRejected` callback, subsequent
+`$onRejected` callbacks are invoked with the thrown exception as the reason.
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$promise->then(null, function ($reason) {
+    throw new Exception($reason);
+})->then(null, function ($reason) {
+    assert($reason->getMessage() === 'Error!');
+});
+
+$promise->reject('Error!');
+```
+
+You can also forward a rejection down the promise chain by returning a
+`GuzzleHttp\Promise\RejectedPromise` in either an `$onFulfilled` or
+`$onRejected` callback.
+
+```php
+use GuzzleHttp\Promise\Promise;
+use GuzzleHttp\Promise\RejectedPromise;
+
+$promise = new Promise();
+$promise->then(null, function ($reason) {
+    return new RejectedPromise($reason);
+})->then(null, function ($reason) {
+    assert($reason === 'Error!');
+});
+
+$promise->reject('Error!');
+```
+
+If an exception is not thrown in a `$onRejected` callback and the callback
+does not return a rejected promise, downstream `$onFulfilled` callbacks are
+invoked using the value returned from the `$onRejected` callback.
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$promise
+    ->then(null, function ($reason) {
+        return "It's ok";
+    })
+    ->then(function ($value) {
+        assert($value === "It's ok");
+    });
+
+$promise->reject('Error!');
+```
+
+# Synchronous wait
+
+You can synchronously force promises to complete using a promise's `wait`
+method. When creating a promise, you can provide a wait function that is used
+to synchronously force a promise to complete. When a wait function is invoked
+it is expected to deliver a value to the promise or reject the promise. If the
+wait function does not deliver a value, then an exception is thrown. The wait
+function provided to a promise constructor is invoked when the `wait` function
+of the promise is called.
+
+```php
+$promise = new Promise(function () use (&$promise) {
+    $promise->resolve('foo');
+});
+
+// Calling wait will return the value of the promise.
+echo $promise->wait(); // outputs "foo"
+```
+
+If an exception is encountered while invoking the wait function of a promise,
+the promise is rejected with the exception and the exception is thrown.
+
+```php
+$promise = new Promise(function () use (&$promise) {
+    throw new Exception('foo');
+});
+
+$promise->wait(); // throws the exception.
+```
+
+Calling `wait` on a promise that has been fulfilled will not trigger the wait
+function. It will simply return the previously resolved value.
+
+```php
+$promise = new Promise(function () { die('this is not called!'); });
+$promise->resolve('foo');
+echo $promise->wait(); // outputs "foo"
+```
+
+Calling `wait` on a promise that has been rejected will throw an exception. If
+the rejection reason is an instance of `\Exception` the reason is thrown.
+Otherwise, a `GuzzleHttp\Promise\RejectionException` is thrown and the reason
+can be obtained by calling the `getReason` method of the exception.
+
+```php
+$promise = new Promise();
+$promise->reject('foo');
+$promise->wait();
+```
+
+> PHP Fatal error:  Uncaught exception 'GuzzleHttp\Promise\RejectionException' with message 'The promise was rejected with value: foo'
+
+
+## Unwrapping a promise
+
+When synchronously waiting on a promise, you are joining the state of the
+promise into the current state of execution (i.e., return the value of the
+promise if it was fulfilled or throw an exception if it was rejected). This is
+called "unwrapping" the promise. Waiting on a promise will by default unwrap
+the promise state.
+
+You can force a promise to resolve and *not* unwrap the state of the promise
+by passing `false` to the first argument of the `wait` function:
+
+```php
+$promise = new Promise();
+$promise->reject('foo');
+// This will not throw an exception. It simply ensures the promise has
+// been resolved.
+$promise->wait(false);
+```
+
+When unwrapping a promise, the resolved value of the promise will be waited
+upon until the unwrapped value is not a promise. This means that if you resolve
+promise A with a promise B and unwrap promise A, the value returned by the
+wait function will be the value delivered to promise B.
+
+**Note**: when you do not unwrap the promise, no value is returned.
+
+
+# Cancellation
+
+You can cancel a promise that has not yet been fulfilled using the `cancel()`
+method of a promise. When creating a promise you can provide an optional
+cancel function that when invoked cancels the action of computing a resolution
+of the promise.
+
+
+# API
+
+
+## Promise
+
+When creating a promise object, you can provide an optional `$waitFn` and
+`$cancelFn`. `$waitFn` is a function that is invoked with no arguments and is
+expected to resolve the promise. `$cancelFn` is a function with no arguments
+that is expected to cancel the computation of a promise. It is invoked when the
+`cancel()` method of a promise is called.
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise(
+    function () use (&$promise) {
+        $promise->resolve('waited');
+    },
+    function () {
+        // do something that will cancel the promise computation (e.g., close
+        // a socket, cancel a database query, etc...)
+    }
+);
+
+assert('waited' === $promise->wait());
+```
+
+A promise has the following methods:
+
+- `then(callable $onFulfilled, callable $onRejected) : PromiseInterface`
+  
+  Appends fulfillment and rejection handlers to the promise, and returns a new promise resolving to the return value of the called handler.
+
+- `otherwise(callable $onRejected) : PromiseInterface`
+  
+  Appends a rejection handler callback to the promise, and returns a new promise resolving to the return value of the callback if it is called, or to its original fulfillment value if the promise is instead fulfilled.
+
+- `wait($unwrap = true) : mixed`
+
+  Synchronously waits on the promise to complete.
+  
+  `$unwrap` controls whether or not the value of the promise is returned for a
+  fulfilled promise or if an exception is thrown if the promise is rejected.
+  This is set to `true` by default.
+
+- `cancel()`
+
+  Attempts to cancel the promise if possible. The promise being cancelled and
+  the parent most ancestor that has not yet been resolved will also be
+  cancelled. Any promises waiting on the cancelled promise to resolve will also
+  be cancelled.
+
+- `getState() : string`
+
+  Returns the state of the promise. One of `pending`, `fulfilled`, or
+  `rejected`.
+
+- `resolve($value)`
+
+  Fulfills the promise with the given `$value`.
+
+- `reject($reason)`
+
+  Rejects the promise with the given `$reason`.
+
+
+## FulfilledPromise
+
+A fulfilled promise can be created to represent a promise that has been
+fulfilled.
+
+```php
+use GuzzleHttp\Promise\FulfilledPromise;
+
+$promise = new FulfilledPromise('value');
+
+// Fulfilled callbacks are immediately invoked.
+$promise->then(function ($value) {
+    echo $value;
+});
+```
+
+
+## RejectedPromise
+
+A rejected promise can be created to represent a promise that has been
+rejected.
+
+```php
+use GuzzleHttp\Promise\RejectedPromise;
+
+$promise = new RejectedPromise('Error');
+
+// Rejected callbacks are immediately invoked.
+$promise->then(null, function ($reason) {
+    echo $reason;
+});
+```
+
+
+# Promise interop
+
+This library works with foreign promises that have a `then` method. This means
+you can use Guzzle promises with [React promises](https://github.com/reactphp/promise)
+for example. When a foreign promise is returned inside of a then method
+callback, promise resolution will occur recursively.
+
+```php
+// Create a React promise
+$deferred = new React\Promise\Deferred();
+$reactPromise = $deferred->promise();
+
+// Create a Guzzle promise that is fulfilled with a React promise.
+$guzzlePromise = new GuzzleHttp\Promise\Promise();
+$guzzlePromise->then(function ($value) use ($reactPromise) {
+    // Do something something with the value...
+    // Return the React promise
+    return $reactPromise;
+});
+```
+
+Please note that wait and cancel chaining is no longer possible when forwarding
+a foreign promise. You will need to wrap a third-party promise with a Guzzle
+promise in order to utilize wait and cancel functions with foreign promises.
+
+
+## Event Loop Integration
+
+In order to keep the stack size constant, Guzzle promises are resolved
+asynchronously using a task queue. When waiting on promises synchronously, the
+task queue will be automatically run to ensure that the blocking promise and
+any forwarded promises are resolved. When using promises asynchronously in an
+event loop, you will need to run the task queue on each tick of the loop. If
+you do not run the task queue, then promises will not be resolved.
+
+You can run the task queue using the `run()` method of the global task queue
+instance.
+
+```php
+// Get the global task queue
+$queue = GuzzleHttp\Promise\Utils::queue();
+$queue->run();
+```
+
+For example, you could use Guzzle promises with React using a periodic timer:
+
+```php
+$loop = React\EventLoop\Factory::create();
+$loop->addPeriodicTimer(0, [$queue, 'run']);
+```
+
+*TODO*: Perhaps adding a `futureTick()` on each tick would be faster?
+
+
+# Implementation notes
+
+
+## Promise resolution and chaining is handled iteratively
+
+By shuffling pending handlers from one owner to another, promises are
+resolved iteratively, allowing for "infinite" then chaining.
+
+```php
+<?php
+require 'vendor/autoload.php';
+
+use GuzzleHttp\Promise\Promise;
+
+$parent = new Promise();
+$p = $parent;
+
+for ($i = 0; $i < 1000; $i++) {
+    $p = $p->then(function ($v) {
+        // The stack size remains constant (a good thing)
+        echo xdebug_get_stack_depth() . ', ';
+        return $v + 1;
+    });
+}
+
+$parent->resolve(0);
+var_dump($p->wait()); // int(1000)
+
+```
+
+When a promise is fulfilled or rejected with a non-promise value, the promise
+then takes ownership of the handlers of each child promise and delivers values
+down the chain without using recursion.
+
+When a promise is resolved with another promise, the original promise transfers
+all of its pending handlers to the new promise. When the new promise is
+eventually resolved, all of the pending handlers are delivered the forwarded
+value.
+
+
+## A promise is the deferred.
+
+Some promise libraries implement promises using a deferred object to represent
+a computation and a promise object to represent the delivery of the result of
+the computation. This is a nice separation of computation and delivery because
+consumers of the promise cannot modify the value that will be eventually
+delivered.
+
+One side effect of being able to implement promise resolution and chaining
+iteratively is that you need to be able for one promise to reach into the state
+of another promise to shuffle around ownership of handlers. In order to achieve
+this without making the handlers of a promise publicly mutable, a promise is
+also the deferred value, allowing promises of the same parent class to reach
+into and modify the private properties of promises of the same type. While this
+does allow consumers of the value to modify the resolution or rejection of the
+deferred, it is a small price to pay for keeping the stack size constant.
+
+```php
+$promise = new Promise();
+$promise->then(function ($value) { echo $value; });
+// The promise is the deferred value, so you can deliver a value to it.
+$promise->resolve('foo');
+// prints "foo"
+```
+
+
+## Upgrading from Function API
+
+A static API was first introduced in 1.4.0, in order to mitigate problems with functions conflicting between global and local copies of the package. The function API will be removed in 2.0.0. A migration table has been provided here for your convenience:
+
+| Original Function | Replacement Method |
+|----------------|----------------|
+| `queue` | `Utils::queue` |
+| `task` | `Utils::task` |
+| `promise_for` | `Create::promiseFor` |
+| `rejection_for` | `Create::rejectionFor` |
+| `exception_for` | `Create::exceptionFor` |
+| `iter_for` | `Create::iterFor` |
+| `inspect` | `Utils::inspect` |
+| `inspect_all` | `Utils::inspectAll` |
+| `unwrap` | `Utils::unwrap` |
+| `all` | `Utils::all` |
+| `some` | `Utils::some` |
+| `any` | `Utils::any` |
+| `settle` | `Utils::settle` |
+| `each` | `Each::of` |
+| `each_limit` | `Each::ofLimit` |
+| `each_limit_all` | `Each::ofLimitAll` |
+| `!is_fulfilled` | `Is::pending` |
+| `is_fulfilled` | `Is::fulfilled` |
+| `is_rejected` | `Is::rejected` |
+| `is_settled` | `Is::settled` |
+| `coroutine` | `Coroutine::of` |

vendor/guzzlehttp/promises/composer.json

+{
+    "name": "guzzlehttp/promises",
+    "description": "Guzzle promises library",
+    "keywords": ["promise"],
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Michael Dowling",
+            "email": "mtdowling@gmail.com",
+            "homepage": "https://github.com/mtdowling"
+        }
+    ],
+    "require": {
+        "php": ">=5.5"
+    },
+    "require-dev": {
+        "symfony/phpunit-bridge": "^4.4 || ^5.1"
+    },
+    "autoload": {
+        "psr-4": {
+            "GuzzleHttp\\Promise\\": "src/"
+        },
+        "files": ["src/functions_include.php"]
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "GuzzleHttp\\Promise\\Tests\\": "tests/"
+        }
+    },
+    "scripts": {
+        "test": "vendor/bin/simple-phpunit",
+        "test-ci": "vendor/bin/simple-phpunit --coverage-text"
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.4-dev"
+        }
+    }
+}

vendor/guzzlehttp/promises/phpstan-baseline.neon

+parameters:
+	ignoreErrors:
+		-
+			message: "#^Parameter \\#1 \\$function of function register_shutdown_function expects callable\\(\\)\\: void, Closure\\(\\)\\: mixed given\\.$#"
+			count: 1
+			path: src/TaskQueue.php
+

vendor/guzzlehttp/promises/phpstan.neon.dist

+includes:
+    - phpstan-baseline.neon
+
+parameters:
+    level: 5
+    paths:
+        - src
+
+    ignoreErrors:
+        - "#^Dead catch - Exception is already caught by Throwable above\\.$#"

vendor/guzzlehttp/promises/psalm.xml

+<?xml version="1.0"?>
+<psalm
+    errorLevel="4"
+    resolveFromConfigFile="true"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xmlns="https://getpsalm.org/schema/config"
+    xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
+>
+    <projectFiles>
+        <directory name="src" />
+        <ignoreFiles>
+            <directory name="vendor" />
+        </ignoreFiles>
+    </projectFiles>
+</psalm>

vendor/guzzlehttp/promises/src/AggregateException.php

+<?php
+
+namespace GuzzleHttp\Promise;
+
+/**
+ * Exception thrown when too many errors occur in the some() or any() methods.
+ */
+class AggregateException extends RejectionException
+{
+    public function __construct($msg, array $reasons)
+    {
+        parent::__construct(
+            $reasons,
+            sprintf('%s; %d rejected promises', $msg, count($reasons))
+        );
+    }
+}

vendor/guzzlehttp/promises/src/CancellationException.php

+<?php
+
+namespace GuzzleHttp\Promise;
+
+/**
+ * Exception that is set as the reason for a promise that has been cancelled.
+ */
+class CancellationException extends RejectionException
+{
+}

vendor/guzzlehttp/promises/src/Coroutine.php

+<?php
+
+namespace GuzzleHttp\Promise;
+
+use Exception;
+use Generator;
+use Throwable;
+
+/**
+ * Creates a promise that is resolved using a generator that yields values or
+ * promises (somewhat similar to C#'s async keyword).
+ *
+ * When called, the Coroutine::of method will start an instance of the generator
+ * and returns a promise that is fulfilled with its final yielded value.
+ *
+ * Control is returned back to the generator when the yielded promise settles.
+ * This can lead to less verbose code when doing lots of sequential async calls
+ * with minimal processing in between.
+ *
+ *     use GuzzleHttp\Promise;
+ *
+ *     function createPromise($value) {
+ *         return new Promise\FulfilledPromise($value);
+ *     }
+ *
+ *     $promise = Promise\Coroutine::of(function () {
+ *         $value = (yield createPromise('a'));
+ *         try {
+ *             $value = (yield createPromise($value . 'b'));
+ *         } catch (\Exception $e) {
+ *             // The promise was rejected.
+ *         }
+ *         yield $value . 'c';
+ *     });
+ *
+ *     // Outputs "abc"
+ *     $promise->then(function ($v) { echo $v; });
+ *
+ * @param callable $generatorFn Generator function to wrap into a promise.
+ *
+ * @return Promise
+ *
+ * @link https://github.com/petkaantonov/bluebird/blob/master/API.md#generators inspiration
+ */
+final class Coroutine implements PromiseInterface
+{
+    /**
+     * @var PromiseInterface|null
+     */
+    private $currentPromise;
+
+    /**
+     * @var Generator
+     */
+    private $generator;
+
+    /**
+     * @var Promise
+     */
+    private $result;
+
+    public function __construct(callable $generatorFn)
+    {
+        $this->generator = $generatorFn();
+        $this->result = new Promise(function () {
+            while (isset($this->currentPromise)) {
+                $this->currentPromise->wait();
+            }
+        });
+        try {
+            $this->nextCoroutine($this->generator->current());
+        } catch (\Exception $exception) {
+            $this->result->reject($exception);
+        } catch (Throwable $throwable) {
+            $this->result->reject($throwable);
+        }
+    }
+
+    /**
+     * Create a new coroutine.
+     *
+     * @return self
+     */
+    public static function of(callable $generatorFn)
+    {
+        return new self($generatorFn);
+    }
+
+    public function then(
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        return $this->result->then($onFulfilled, $onRejected);
+    }
+
+    public function otherwise(callable $onRejected)
+    {
+        return $this->result->otherwise($onRejected);
+    }
+
+    public function wait($unwrap = true)
+    {
+        return $this->result->wait($unwrap);
+    }
+
+    public function getState()
+    {
+        return $this->result->getState();
+    }
+
+    public function resolve($value)
+    {
+        $this->result->resolve($value);
+    }
+
+    public function reject($reason)
+    {
+        $this->result->reject($reason);
+    }
+
+    public function cancel()
+    {
+        $this->currentPromise->cancel();
+        $this->result->cancel();
+    }
+
+    private function nextCoroutine($yielded)
+    {
+        $this->currentPromise = Create::promiseFor($yielded)
+            ->then([$this, '_handleSuccess'], [$this, '_handleFailure']);
+    }
+
+    /**
+     * @internal
+     */
+    public function _handleSuccess($value)
+    {
+        unset($this->currentPromise);
+        try {
+            $next = $this->generator->send($value);
+            if ($this->generator->valid()) {
+                $this->nextCoroutine($next);
+            } else {
+                $this->result->resolve($value);
+            }
+        } catch (Exception $exception) {
+            $this->result->reject($exception);
+        } catch (Throwable $throwable) {
+            $this->result->reject($throwable);
+        }
+    }
+
+    /**
+     * @internal
+     */
+    public function _handleFailure($reason)
+    {
+        unset($this->currentPromise);
+        try {
+            $nextYield = $this->generator->throw(Create::exceptionFor($reason));
+            // The throw was caught, so keep iterating on the coroutine
+            $this->nextCoroutine($nextYield);
+        } catch (Exception $exception) {
+            $this->result->reject($exception);
+        } catch (Throwable $throwable) {
+            $this->result->reject($throwable);
+        }
+    }
+}

vendor/guzzlehttp/promises/src/Create.php

+<?php
+
+namespace GuzzleHttp\Promise;
+
+final class Create
+{
+    /**
+     * Creates a promise for a value if the value is not a promise.
+     *
+     * @param mixed $value Promise or value.
+     *
+     * @return PromiseInterface
+     */
+    public static function promiseFor($value)
+    {
+        if ($value instanceof PromiseInterface) {
+            return $value;
+        }
+
+        // Return a Guzzle promise that shadows the given promise.
+        if (is_object($value) && method_exists($value, 'then')) {
+            $wfn = method_exists($value, 'wait') ? [$value, 'wait'] : null;
+            $cfn = method_exists($value, 'cancel') ? [$value, 'cancel'] : null;
+            $promise = new Promise($wfn, $cfn);
+            $value->then([$promise, 'resolve'], [$promise, 'reject']);
+            return $promise;
+        }
+
+        return new FulfilledPromise($value);
+    }
+
+    /**
+     * Creates a rejected promise for a reason if the reason is not a promise.
+     * If the provided reason is a promise, then it is returned as-is.
+     *
+     * @param mixed $reason Promise or reason.
+     *
+     * @return PromiseInterface
+     */
+    public static function rejectionFor($reason)
+    {
+        if ($reason instanceof PromiseInterface) {
+            return $reason;
+        }
+
+        return new RejectedPromise($reason);
+    }
+
+    /**
+     * Create an exception for a rejected promise value.
+     *
+     * @param mixed $reason
+     *
+     * @return \Exception|\Throwable
+     */
+    public static function exceptionFor($reason)
+    {
+        if ($reason instanceof \Exception || $reason instanceof \Throwable) {
+            return $reason;
+        }
+
+        return new RejectionException($reason);
+    }
+
+    /**
+     * Returns an iterator for the given value.
+     *
+     * @param mixed $value
+     *
+     * @return \Iterator
+     */
+    public static function iterFor($value)
+    {
+        if ($value instanceof \Iterator) {
+            return $value;
+        }
+
+        if (is_array($value)) {
+            return new \ArrayIterator($value);
+        }
+
+        return new \ArrayIterator([$value]);
+    }
+}

vendor/guzzlehttp/promises/src/Each.php

+<?php
+
+namespace GuzzleHttp\Promise;
+
+final class Each
+{
+    /**
+     * Given an iterator that yields promises or values, returns a promise that
+     * is fulfilled with a null value when the iterator has been consumed or
+     * the aggregate promise has been fulfilled or rejected.
+     *
+     * $onFulfilled is a function that accepts the fulfilled value, iterator
+     * index, and the aggregate promise. The callback can invoke any necessary
+     * side effects and choose to resolve or reject the aggregate if needed.
+     *
+     * $onRejected is a function that accepts the rejection reason, iterator
+     * index, and the aggregate promise. The callback can invoke any necessary
+     * side effects and choose to resolve or reject the aggregate if needed.
+     *
+     * @param mixed    $iterable    Iterator or array to iterate over.
+     * @param callable $onFulfilled
+     * @param callable $onRejected
+     *
+     * @return PromiseInterface
+     */
+    public static function of(
+        $iterable,
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        return (new EachPromise($iterable, [
+            'fulfilled' => $onFulfilled,
+            'rejected'  => $onRejected
+        ]))->promise();
+    }
+
+    /**
+     * Like of, but only allows a certain number of outstanding promises at any
+     * given time.
+     *
+     * $concurrency may be an integer or a function that accepts the number of
+     * pending promises and returns a numeric concurrency limit value to allow
+     * for dynamic a concurrency size.
+     *
+     * @param mixed        $iterable
+     * @param int|callable $concurrency
+     * @param callable     $onFulfilled
+     * @param callable     $onRejected
+     *
+     * @return PromiseInterface
+     */
+    public static function ofLimit(
+        $iterable,
+        $concurrency,
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        return (new EachPromise($iterable, [
+            'fulfilled'   => $onFulfilled,
+            'rejected'    => $onRejected,
+            'concurrency' => $concurrency
+        ]))->promise();
+    }
+
+    /**
+     * Like limit, but ensures that no promise in the given $iterable argument
+     * is rejected. If any promise is rejected, then the aggregate promise is
+     * rejected with the encountered rejection.
+     *
+     * @param mixed        $iterable
+     * @param int|callable $concurrency
+     * @param callable     $onFulfilled
+     *
+     * @return PromiseInterface
+     */
+    public static function ofLimitAll(
+        $iterable,
+        $concurrency,
+        callable $onFulfilled = null
+    ) {
+        return each_limit(
+            $iterable,
+            $concurrency,
+            $onFulfilled,
+            function ($reason, $idx, PromiseInterface $aggregate) {
+                $aggregate->reject($reason);
+            }
+        );
+    }
+}

vendor/guzzlehttp/promises/src/EachPromise.php

+<?php
+
+namespace GuzzleHttp\Promise;
+
+/**
+ * Represents a promise that iterates over many promises and invokes
+ * side-effect functions in the process.
+ */
+class EachPromise implements PromisorInterface
+{
+    private $pending = [];
+
+    /** @var \Iterator|null */
+    private $iterable;
+
+    /** @var callable|int|null */
+    private $concurrency;
+
+    /** @var callable|null */
+    private $onFulfilled;
+
+    /** @var callable|null */
+    private $onRejected;
+
+    /** @var Promise|null */
+    private $aggregate;
+
+    /** @var bool|null */
+    private $mutex;
+
+    /**
+     * Configuration hash can include the following key value pairs:
+     *
+     * - fulfilled: (callable) Invoked when a promise fulfills. The function
+     *   is invoked with three arguments: the fulfillment value, the index
+     *   position from the iterable list of the promise, and the aggregate
+     *   promise that manages all of the promises. The aggregate promise may
+     *   be resolved from within the callback to short-circuit the promise.
+     * - rejected: (callable) Invoked when a promise is rejected. The
+     *   function is invoked with three arguments: the rejection reason, the
+     *   index position from the iterable list of the promise, and the
+     *   aggregate promise that manages all of the promises. The aggregate
+     *   promise may be resolved from within the callback to short-circuit
+     *   the promise.
+     * - concurrency: (integer) Pass this configuration option to limit the
+     *   allowed number of outstanding concurrently executing promises,
+     *   creating a capped pool of promises. There is no limit by default.
+     *
+     * @param mixed $iterable Promises or values to iterate.
+     * @param array $config   Configuration options
+     */
+    public function __construct($iterable, array $config = [])
+    {
+        $this->iterable = Create::iterFor($iterable);
+
+        if (isset($config['concurrency'])) {
+            $this->concurrency = $config['concurrency'];
+        }
+
+        if (isset($config['fulfilled'])) {
+            $this->onFulfilled = $config['fulfilled'];
+        }
+
+        if (isset($config['rejected'])) {
+            $this->onRejected = $config['rejected'];
+        }
+    }
+
+    /** @psalm-suppress InvalidNullableReturnType */
+    public function promise()
+    {
+        if ($this->aggregate) {
+            return $this->aggregate;
+        }
+
+        try {
+            $this->createPromise();
+            /** @psalm-assert Promise $this->aggregate */
+            $this->iterable->rewind();
+            if (!$this->checkIfFinished()) {
+                $this->refillPending();
+            }
+        } catch (\Throwable $e) {
+            /**
+             * @psalm-suppress NullReference
+             * @phpstan-ignore-next-line
+             */
+            $this->aggregate->reject($e);
+        } catch (\Exception $e) {
+            /**
+             * @psalm-suppress NullReference
+             * @phpstan-ignore-next-line
+             */
+            $this->aggregate->reject($e);
+        }
+
+        /**
+         * @psalm-suppress NullableReturnStatement
+         * @phpstan-ignore-next-line
+         */
+        return $this->aggregate;
+    }
+
+    private function createPromise()
+    {
+        $this->mutex = false;
+        $this->aggregate = new Promise(function () {
+            reset($this->pending);
+            // Consume a potentially fluctuating list of promises while
+            // ensuring that indexes are maintained (precluding array_shift).
+            while ($promise = current($this->pending)) {
+                next($this->pending);
+                $promise->wait();
+                if (Is::settled($this->aggregate)) {
+                    return;
+                }
+            }
+        });
+
+        // Clear the references when the promise is resolved.
+        $clearFn = function () {
+            $this->iterable = $this->concurrency = $this->pending = null;
+            $this->onFulfilled = $this->onRejected = null;
+        };
+
+        $this->aggregate->then($clearFn, $clearFn);
+    }
+
+    private function refillPending()
+    {
+        if (!$this->concurrency) {
+            // Add all pending promises.
+            while ($this->addPending() && $this->advanceIterator());
+            return;
+        }
+
+        // Add only up to N pending promises.
+        $concurrency = is_callable($this->concurrency)
+            ? call_user_func($this->concurrency, count($this->pending))
+            : $this->concurrency;
+        $concurrency = max($concurrency - count($this->pending), 0);
+        // Concurrency may be set to 0 to disallow new promises.
+        if (!$concurrency) {
+            return;
+        }
+        // Add the first pending promise.
+        $this->addPending();
+        // Note this is special handling for concurrency=1 so that we do
+        // not advance the iterator after adding the first promise. This
+        // helps work around issues with generators that might not have the
+        // next value to yield until promise callbacks are called.
+        while (--$concurrency
+            && $this->advanceIterator()
+            && $this->addPending());
+    }
+
+    private function addPending()
+    {
+        if (!$this->iterable || !$this->iterable->valid()) {
+            return false;
+        }
+
+        $promise = Create::promiseFor($this->iterable->current());
+        $key = $this->iterable->key();
+
+        // Iterable keys may not be unique, so we add the promises at the end
+        // of the pending array and retrieve the array index being used
+        $this->pending[] = null;
+        end($this->pending);
+        $idx = key($this->pending);
+
+        $this->pending[$idx] = $promise->then(
+            function ($value) use ($idx, $key) {
+                if ($this->onFulfilled) {
+                    call_user_func(
+                        $this->onFulfilled,
+                        $value,
+                        $key,
+                        $this->aggregate
+                    );
+                }
+                $this->step($idx);
+            },
+            function ($reason) use ($idx, $key) {
+                if ($this->onRejected) {
+                    call_user_func(
+                        $this->onRejected,
+                        $reason,
+                        $key,
+                        $this->aggregate
+                    );
+                }
+                $this->step($idx);
+            }
+        );
+
+        return true;
+    }
+
+    private function advanceIterator()
+    {
+        // Place a lock on the iterator so that we ensure to not recurse,
+        // preventing fatal generator errors.
+        if ($this->mutex) {
+            return false;
+        }
+
+        $this->mutex = true;
+
+        try {
+            $this->iterable->next();
+            $this->mutex = false;
+            return true;
+        } catch (\Throwable $e) {
+            $this->aggregate->reject($e);
+            $this->mutex = false;
+            return false;
+        } catch (\Exception $e) {
+            $this->aggregate->reject($e);
+            $this->mutex = false;
+            return false;
+        }
+    }
+
+    private function step($idx)
+    {
+        // If the promise was already resolved, then ignore this step.
+        if (Is::settled($this->aggregate)) {
+            return;
+        }
+
+        unset($this->pending[$idx]);
+
+        // Only refill pending promises if we are not locked, preventing the
+        // EachPromise to recursively invoke the provided iterator, which
+        // cause a fatal error: "Cannot resume an already running generator"
+        if ($this->advanceIterator() && !$this->checkIfFinished()) {
+            // Add more pending promises if possible.
+            $this->refillPending();
+        }
+    }
+
+    private function checkIfFinished()
+    {
+        if (!$this->pending && !$this->iterable->valid()) {
+            // Resolve the promise if there's nothing left to do.
+            $this->aggregate->resolve(null);
+            return true;
+        }
+
+        return false;
+    }
+}

vendor/guzzlehttp/promises/src/FulfilledPromise.php

+<?php
+
+namespace GuzzleHttp\Promise;
+
+/**
+ * A promise that has been fulfilled.
+ *
+ * Thenning off of this promise will invoke the onFulfilled callback
+ * immediately and ignore other callbacks.
+ */
+class FulfilledPromise implements PromiseInterface
+{
+    private $value;
+
+    public function __construct($value)
+    {
+        if (is_object($value) && method_exists($value, 'then')) {
+            throw new \InvalidArgumentException(
+                'You cannot create a FulfilledPromise with a promise.'
+            );
+        }
+
+        $this->value = $value;
+    }
+
+    public function then(
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        // Return itself if there is no onFulfilled function.
+        if (!$onFulfilled) {
+            return $this;
+        }
+
+        $queue = Utils::queue();
+        $p = new Promise([$queue, 'run']);
+        $value = $this->value;
+        $queue->add(static function () use ($p, $value, $onFulfilled) {
+            if (Is::pending($p)) {
+                try {
+                    $p->resolve($onFulfilled($value));
+                } catch (\Throwable $e) {
+                    $p->reject($e);
+                } catch (\Exception $e) {
+                    $p->reject($e);
+                }
+            }
+        });
+
+        return $p;
+    }
+
+    public function otherwise(callable $onRejected)
+    {
+        return $this->then(null, $onRejected);
+    }
+
+    public function wait($unwrap = true, $defaultDelivery = null)
+    {
+        return $unwrap ? $this->value : null;
+    }
+
+    public function getState()
+    {
+        return self::FULFILLED;
+    }
+
+    public function resolve($value)
+    {
+        if ($value !== $this->value) {
+            throw new \LogicException("Cannot resolve a fulfilled promise");
+        }
+    }
+
+    public function reject($reason)
+    {
+        throw new \LogicException("Cannot reject a fulfilled promise");
+    }
+
+    public function cancel()
+    {
+        // pass
+    }
+}