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diff --git a/vendor/guzzlehttp/psr7/src/functions.php b/vendor/guzzlehttp/psr7/src/functions.php
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+++ b/vendor/guzzlehttp/psr7/src/functions.php
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+<?php
+
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\MessageInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\StreamInterface;
+use Psr\Http\Message\UriInterface;
+
+/**
+ * Returns the string representation of an HTTP message.
+ *
+ * @param MessageInterface $message Message to convert to a string.
+ *
+ * @return string
+ *
+ * @deprecated str will be removed in guzzlehttp/psr7:2.0. Use Message::toString instead.
+ */
+function str(MessageInterface $message)
+{
+    return Message::toString($message);
+}
+
+/**
+ * Returns a UriInterface for the given value.
+ *
+ * This function accepts a string or UriInterface and returns a
+ * UriInterface for the given value. If the value is already a
+ * UriInterface, it is returned as-is.
+ *
+ * @param string|UriInterface $uri
+ *
+ * @return UriInterface
+ *
+ * @throws \InvalidArgumentException
+ *
+ * @deprecated uri_for will be removed in guzzlehttp/psr7:2.0. Use Utils::uriFor instead.
+ */
+function uri_for($uri)
+{
+    return Utils::uriFor($uri);
+}
+
+/**
+ * Create a new stream based on the input type.
+ *
+ * Options is an associative array that can contain the following keys:
+ * - metadata: Array of custom metadata.
+ * - size: Size of the stream.
+ *
+ * This method accepts the following `$resource` types:
+ * - `Psr\Http\Message\StreamInterface`: Returns the value as-is.
+ * - `string`: Creates a stream object that uses the given string as the contents.
+ * - `resource`: Creates a stream object that wraps the given PHP stream resource.
+ * - `Iterator`: If the provided value implements `Iterator`, then a read-only
+ *   stream object will be created that wraps the given iterable. Each time the
+ *   stream is read from, data from the iterator will fill a buffer and will be
+ *   continuously called until the buffer is equal to the requested read size.
+ *   Subsequent read calls will first read from the buffer and then call `next`
+ *   on the underlying iterator until it is exhausted.
+ * - `object` with `__toString()`: If the object has the `__toString()` method,
+ *   the object will be cast to a string and then a stream will be returned that
+ *   uses the string value.
+ * - `NULL`: When `null` is passed, an empty stream object is returned.
+ * - `callable` When a callable is passed, a read-only stream object will be
+ *   created that invokes the given callable. The callable is invoked with the
+ *   number of suggested bytes to read. The callable can return any number of
+ *   bytes, but MUST return `false` when there is no more data to return. The
+ *   stream object that wraps the callable will invoke the callable until the
+ *   number of requested bytes are available. Any additional bytes will be
+ *   buffered and used in subsequent reads.
+ *
+ * @param resource|string|int|float|bool|StreamInterface|callable|\Iterator|null $resource Entity body data
+ * @param array                                                                  $options  Additional options
+ *
+ * @return StreamInterface
+ *
+ * @throws \InvalidArgumentException if the $resource arg is not valid.
+ *
+ * @deprecated stream_for will be removed in guzzlehttp/psr7:2.0. Use Utils::streamFor instead.
+ */
+function stream_for($resource = '', array $options = [])
+{
+    return Utils::streamFor($resource, $options);
+}
+
+/**
+ * Parse an array of header values containing ";" separated data into an
+ * array of associative arrays representing the header key value pair data
+ * of the header. When a parameter does not contain a value, but just
+ * contains a key, this function will inject a key with a '' string value.
+ *
+ * @param string|array $header Header to parse into components.
+ *
+ * @return array Returns the parsed header values.
+ *
+ * @deprecated parse_header will be removed in guzzlehttp/psr7:2.0. Use Header::parse instead.
+ */
+function parse_header($header)
+{
+    return Header::parse($header);
+}
+
+/**
+ * Converts an array of header values that may contain comma separated
+ * headers into an array of headers with no comma separated values.
+ *
+ * @param string|array $header Header to normalize.
+ *
+ * @return array Returns the normalized header field values.
+ *
+ * @deprecated normalize_header will be removed in guzzlehttp/psr7:2.0. Use Header::normalize instead.
+ */
+function normalize_header($header)
+{
+    return Header::normalize($header);
+}
+
+/**
+ * Clone and modify a request with the given changes.
+ *
+ * This method is useful for reducing the number of clones needed to mutate a
+ * message.
+ *
+ * The changes can be one of:
+ * - method: (string) Changes the HTTP method.
+ * - set_headers: (array) Sets the given headers.
+ * - remove_headers: (array) Remove the given headers.
+ * - body: (mixed) Sets the given body.
+ * - uri: (UriInterface) Set the URI.
+ * - query: (string) Set the query string value of the URI.
+ * - version: (string) Set the protocol version.
+ *
+ * @param RequestInterface $request Request to clone and modify.
+ * @param array            $changes Changes to apply.
+ *
+ * @return RequestInterface
+ *
+ * @deprecated modify_request will be removed in guzzlehttp/psr7:2.0. Use Utils::modifyRequest instead.
+ */
+function modify_request(RequestInterface $request, array $changes)
+{
+    return Utils::modifyRequest($request, $changes);
+}
+
+/**
+ * Attempts to rewind a message body and throws an exception on failure.
+ *
+ * The body of the message will only be rewound if a call to `tell()` returns a
+ * value other than `0`.
+ *
+ * @param MessageInterface $message Message to rewind
+ *
+ * @throws \RuntimeException
+ *
+ * @deprecated rewind_body will be removed in guzzlehttp/psr7:2.0. Use Message::rewindBody instead.
+ */
+function rewind_body(MessageInterface $message)
+{
+    Message::rewindBody($message);
+}
+
+/**
+ * Safely opens a PHP stream resource using a filename.
+ *
+ * When fopen fails, PHP normally raises a warning. This function adds an
+ * error handler that checks for errors and throws an exception instead.
+ *
+ * @param string $filename File to open
+ * @param string $mode     Mode used to open the file
+ *
+ * @return resource
+ *
+ * @throws \RuntimeException if the file cannot be opened
+ *
+ * @deprecated try_fopen will be removed in guzzlehttp/psr7:2.0. Use Utils::tryFopen instead.
+ */
+function try_fopen($filename, $mode)
+{
+    return Utils::tryFopen($filename, $mode);
+}
+
+/**
+ * Copy the contents of a stream into a string until the given number of
+ * bytes have been read.
+ *
+ * @param StreamInterface $stream Stream to read
+ * @param int             $maxLen Maximum number of bytes to read. Pass -1
+ *                                to read the entire stream.
+ *
+ * @return string
+ *
+ * @throws \RuntimeException on error.
+ *
+ * @deprecated copy_to_string will be removed in guzzlehttp/psr7:2.0. Use Utils::copyToString instead.
+ */
+function copy_to_string(StreamInterface $stream, $maxLen = -1)
+{
+    return Utils::copyToString($stream, $maxLen);
+}
+
+/**
+ * Copy the contents of a stream into another stream until the given number
+ * of bytes have been read.
+ *
+ * @param StreamInterface $source Stream to read from
+ * @param StreamInterface $dest   Stream to write to
+ * @param int             $maxLen Maximum number of bytes to read. Pass -1
+ *                                to read the entire stream.
+ *
+ * @throws \RuntimeException on error.
+ *
+ * @deprecated copy_to_stream will be removed in guzzlehttp/psr7:2.0. Use Utils::copyToStream instead.
+ */
+function copy_to_stream(StreamInterface $source, StreamInterface $dest, $maxLen = -1)
+{
+    return Utils::copyToStream($source, $dest, $maxLen);
+}
+
+/**
+ * Calculate a hash of a stream.
+ *
+ * This method reads the entire stream to calculate a rolling hash, based on
+ * PHP's `hash_init` functions.
+ *
+ * @param StreamInterface $stream    Stream to calculate the hash for
+ * @param string          $algo      Hash algorithm (e.g. md5, crc32, etc)
+ * @param bool            $rawOutput Whether or not to use raw output
+ *
+ * @return string Returns the hash of the stream
+ *
+ * @throws \RuntimeException on error.
+ *
+ * @deprecated hash will be removed in guzzlehttp/psr7:2.0. Use Utils::hash instead.
+ */
+function hash(StreamInterface $stream, $algo, $rawOutput = false)
+{
+    return Utils::hash($stream, $algo, $rawOutput);
+}
+
+/**
+ * Read a line from the stream up to the maximum allowed buffer length.
+ *
+ * @param StreamInterface $stream    Stream to read from
+ * @param int|null        $maxLength Maximum buffer length
+ *
+ * @return string
+ *
+ * @deprecated readline will be removed in guzzlehttp/psr7:2.0. Use Utils::readLine instead.
+ */
+function readline(StreamInterface $stream, $maxLength = null)
+{
+    return Utils::readLine($stream, $maxLength);
+}
+
+/**
+ * Parses a request message string into a request object.
+ *
+ * @param string $message Request message string.
+ *
+ * @return Request
+ *
+ * @deprecated parse_request will be removed in guzzlehttp/psr7:2.0. Use Message::parseRequest instead.
+ */
+function parse_request($message)
+{
+    return Message::parseRequest($message);
+}
+
+/**
+ * Parses a response message string into a response object.
+ *
+ * @param string $message Response message string.
+ *
+ * @return Response
+ *
+ * @deprecated parse_response will be removed in guzzlehttp/psr7:2.0. Use Message::parseResponse instead.
+ */
+function parse_response($message)
+{
+    return Message::parseResponse($message);
+}
+
+/**
+ * Parse a query string into an associative array.
+ *
+ * If multiple values are found for the same key, the value of that key value
+ * pair will become an array. This function does not parse nested PHP style
+ * arrays into an associative array (e.g., `foo[a]=1&foo[b]=2` will be parsed
+ * into `['foo[a]' => '1', 'foo[b]' => '2'])`.
+ *
+ * @param string   $str         Query string to parse
+ * @param int|bool $urlEncoding How the query string is encoded
+ *
+ * @return array
+ *
+ * @deprecated parse_query will be removed in guzzlehttp/psr7:2.0. Use Query::parse instead.
+ */
+function parse_query($str, $urlEncoding = true)
+{
+    return Query::parse($str, $urlEncoding);
+}
+
+/**
+ * Build a query string from an array of key value pairs.
+ *
+ * This function can use the return value of `parse_query()` to build a query
+ * string. This function does not modify the provided keys when an array is
+ * encountered (like `http_build_query()` would).
+ *
+ * @param array     $params   Query string parameters.
+ * @param int|false $encoding Set to false to not encode, PHP_QUERY_RFC3986
+ *                            to encode using RFC3986, or PHP_QUERY_RFC1738
+ *                            to encode using RFC1738.
+ *
+ * @return string
+ *
+ * @deprecated build_query will be removed in guzzlehttp/psr7:2.0. Use Query::build instead.
+ */
+function build_query(array $params, $encoding = PHP_QUERY_RFC3986)
+{
+    return Query::build($params, $encoding);
+}
+
+/**
+ * Determines the mimetype of a file by looking at its extension.
+ *
+ * @param string $filename
+ *
+ * @return string|null
+ *
+ * @deprecated mimetype_from_filename will be removed in guzzlehttp/psr7:2.0. Use MimeType::fromFilename instead.
+ */
+function mimetype_from_filename($filename)
+{
+    return MimeType::fromFilename($filename);
+}
+
+/**
+ * Maps a file extensions to a mimetype.
+ *
+ * @param $extension string The file extension.
+ *
+ * @return string|null
+ *
+ * @link http://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x/conf/mime.types
+ * @deprecated mimetype_from_extension will be removed in guzzlehttp/psr7:2.0. Use MimeType::fromExtension instead.
+ */
+function mimetype_from_extension($extension)
+{
+    return MimeType::fromExtension($extension);
+}
+
+/**
+ * Parses an HTTP message into an associative array.
+ *
+ * The array contains the "start-line" key containing the start line of
+ * the message, "headers" key containing an associative array of header
+ * array values, and a "body" key containing the body of the message.
+ *
+ * @param string $message HTTP request or response to parse.
+ *
+ * @return array
+ *
+ * @internal
+ *
+ * @deprecated _parse_message will be removed in guzzlehttp/psr7:2.0. Use Message::parseMessage instead.
+ */
+function _parse_message($message)
+{
+    return Message::parseMessage($message);
+}
+
+/**
+ * Constructs a URI for an HTTP request message.
+ *
+ * @param string $path    Path from the start-line
+ * @param array  $headers Array of headers (each value an array).
+ *
+ * @return string
+ *
+ * @internal
+ *
+ * @deprecated _parse_request_uri will be removed in guzzlehttp/psr7:2.0. Use Message::parseRequestUri instead.
+ */
+function _parse_request_uri($path, array $headers)
+{
+    return Message::parseRequestUri($path, $headers);
+}
+
+/**
+ * Get a short summary of the message body.
+ *
+ * Will return `null` if the response is not printable.
+ *
+ * @param MessageInterface $message    The message to get the body summary
+ * @param int              $truncateAt The maximum allowed size of the summary
+ *
+ * @return string|null
+ *
+ * @deprecated get_message_body_summary will be removed in guzzlehttp/psr7:2.0. Use Message::bodySummary instead.
+ */
+function get_message_body_summary(MessageInterface $message, $truncateAt = 120)
+{
+    return Message::bodySummary($message, $truncateAt);
+}
+
+/**
+ * Remove the items given by the keys, case insensitively from the data.
+ *
+ * @param iterable<string> $keys
+ *
+ * @return array
+ *
+ * @internal
+ *
+ * @deprecated _caseless_remove will be removed in guzzlehttp/psr7:2.0. Use Utils::caselessRemove instead.
+ */
+function _caseless_remove($keys, array $data)
+{
+    return Utils::caselessRemove($keys, $data);
+}