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<?phpnamespace GuzzleHttp\Psr7;
 
 use Psr\Http\Message\ResponseInterface;
 
 /**
 * PSR-7 response implementation.
 */
 class Response implements ResponseInterface
 {
 use MessageTrait;
 
 /** @var array Map of standard HTTP status code/reason phrases */
 private static $phrases = [
 100 => 'Continue',
 101 => 'Switching Protocols',
 102 => 'Processing',
 200 => 'OK',
 201 => 'Created',
 202 => 'Accepted',
 203 => 'Non-Authoritative Information',
 204 => 'No Content',
 205 => 'Reset Content',
 206 => 'Partial Content',
 207 => 'Multi-status',
 208 => 'Already Reported',
 300 => 'Multiple Choices',
 301 => 'Moved Permanently',
 302 => 'Found',
 303 => 'See Other',
 304 => 'Not Modified',
 305 => 'Use Proxy',
 306 => 'Switch Proxy',
 307 => 'Temporary Redirect',
 400 => 'Bad Request',
 401 => 'Unauthorized',
 402 => 'Payment Required',
 403 => 'Forbidden',
 404 => 'Not Found',
 405 => 'Method Not Allowed',
 406 => 'Not Acceptable',
 407 => 'Proxy Authentication Required',
 408 => 'Request Time-out',
 409 => 'Conflict',
 410 => 'Gone',
 411 => 'Length Required',
 412 => 'Precondition Failed',
 413 => 'Request Entity Too Large',
 414 => 'Request-URI Too Large',
 415 => 'Unsupported Media Type',
 416 => 'Requested range not satisfiable',
 417 => 'Expectation Failed',
 418 => 'I\'m a teapot',
 422 => 'Unprocessable Entity',
 423 => 'Locked',
 424 => 'Failed Dependency',
 425 => 'Unordered Collection',
 426 => 'Upgrade Required',
 428 => 'Precondition Required',
 429 => 'Too Many Requests',
 431 => 'Request Header Fields Too Large',
 451 => 'Unavailable For Legal Reasons',
 500 => 'Internal Server Error',
 501 => 'Not Implemented',
 502 => 'Bad Gateway',
 503 => 'Service Unavailable',
 504 => 'Gateway Time-out',
 505 => 'HTTP Version not supported',
 506 => 'Variant Also Negotiates',
 507 => 'Insufficient Storage',
 508 => 'Loop Detected',
 511 => 'Network Authentication Required',
 ];
 
 /** @var null|string */
 private $reasonPhrase = '';
 
 /** @var int */
 private $statusCode = 200;
 
 /**
 * @param int    $status  Status code for the response, if any.
 * @param array  $headers Headers for the response, if any.
 * @param mixed  $body    Stream body.
 * @param string $version Protocol version.
 * @param string $reason  Reason phrase (a default will be used if possible).
 */
 public function __construct(
 $status = 200,
 array $headers = [],
 $body = null,
 $version = '1.1',
 $reason = null
 ) {
 $this->statusCode = (int) $status;
 
 if ($body !== null) {
 $this->stream = stream_for($body);
 }
 
 $this->setHeaders($headers);
 if (!$reason && isset(self::$phrases[$this->statusCode])) {
 $this->reasonPhrase = self::$phrases[$status];
 } else {
 $this->reasonPhrase = (string) $reason;
 }
 
 $this->protocol = $version;
 }
 
 public function getStatusCode()
 {
 return $this->statusCode;
 }
 
 public function getReasonPhrase()
 {
 return $this->reasonPhrase;
 }
 
 public function withStatus($code, $reasonPhrase = '')
 {
 $new = clone $this;
 $new->statusCode = (int) $code;
 if (!$reasonPhrase && isset(self::$phrases[$new->statusCode])) {
 $reasonPhrase = self::$phrases[$new->statusCode];
 }
 $new->reasonPhrase = $reasonPhrase;
 return $new;
 }
 }
 
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