text: from enum import IntEnum
  
  __all__ = ['HTTPStatus']
  
  class HTTPStatus(IntEnum):
      """HTTP status codes and reason phrases
  
      Status codes from the following RFCs are all observed:
  
          * RFC 7231: Hypertext Transfer Protocol (HTTP/1.1), obsoletes 2616
          * RFC 6585: Additional HTTP Status Codes
          * RFC 3229: Delta encoding in HTTP
          * RFC 4918: HTTP Extensions for WebDAV, obsoletes 2518
          * RFC 5842: Binding Extensions to WebDAV
          * RFC 7238: Permanent Redirect
          * RFC 2295: Transparent Content Negotiation in HTTP
          * RFC 2774: An HTTP Extension Framework
          * RFC 7540: Hypertext Transfer Protocol Version 2 (HTTP/2)
      """
      def __new__(cls, value, phrase, description=''):
          obj = int.__new__(cls, value)
          obj._value_ = value
  
          obj.phrase = phrase
          obj.description = description
          return obj
  
      # informational
      CONTINUE = 100, 'Continue', 'Request received, please continue'
      SWITCHING_PROTOCOLS = (101, 'Switching Protocols',
              'Switching to new protocol; obey Upgrade header')
      PROCESSING = 102, 'Processing'
  
      # success
      OK = 200, 'OK', 'Request fulfilled, document follows'
      CREATED = 201, 'Created', 'Document created, URL follows'
      ACCEPTED = (202, 'Accepted',
          'Request accepted, processing continues off-line')
      NON_AUTHORITATIVE_INFORMATION = (203,
          'Non-Authoritative Information', 'Request fulfilled from cache')
      NO_CONTENT = 204, 'No Content', 'Request fulfilled, nothing follows'
      RESET_CONTENT = 205, 'Reset Content', 'Clear input form for further input'
      PARTIAL_CONTENT = 206, 'Partial Content', 'Partial content follows'
      MULTI_STATUS = 207, 'Multi-Status'
      ALREADY_REPORTED = 208, 'Already Reported'
      IM_USED = 226, 'IM Used'
  
      # redirection
      MULTIPLE_CHOICES = (300, 'Multiple Choices',
          'Object has several resources -- see URI list')
      MOVED_PERMANENTLY = (301, 'Moved Permanently',
          'Object moved permanently -- see URI list')
      FOUND = 302, 'Found', 'Object moved temporarily -- see URI list'
      SEE_OTHER = 303, 'See Other', 'Object moved -- see Method and URL list'
      NOT_MODIFIED = (304, 'Not Modified',
          'Document has not changed since given time')
      USE_PROXY = (305, 'Use Proxy',
          'You must use proxy specified in Location to access this resource')
      TEMPORARY_REDIRECT = (307, 'Temporary Redirect',
          'Object moved temporarily -- see URI list')
      PERMANENT_REDIRECT = (308, 'Permanent Redirect',
          'Object moved permanently -- see URI list')
  
      # client error
      BAD_REQUEST = (400, 'Bad Request',
          'Bad request syntax or unsupported method')
      UNAUTHORIZED = (401, 'Unauthorized',
          'No permission -- see authorization schemes')
      PAYMENT_REQUIRED = (402, 'Payment Required',
          'No payment -- see charging schemes')
      FORBIDDEN = (403, 'Forbidden',
          'Request forbidden -- authorization will not help')
      NOT_FOUND = (404, 'Not Found',
          'Nothing matches the given URI')
      METHOD_NOT_ALLOWED = (405, 'Method Not Allowed',
          'Specified method is invalid for this resource')
      NOT_ACCEPTABLE = (406, 'Not Acceptable',
          'URI not available in preferred format')
      PROXY_AUTHENTICATION_REQUIRED = (407,
          'Proxy Authentication Required',
          'You must authenticate with this proxy before proceeding')
      REQUEST_TIMEOUT = (408, 'Request Timeout',
          'Request timed out; try again later')
      CONFLICT = 409, 'Conflict', 'Request conflict'
      GONE = (410, 'Gone',
          'URI no longer exists and has been permanently removed')
      LENGTH_REQUIRED = (411, 'Length Required',
          'Client must specify Content-Length')
      PRECONDITION_FAILED = (412, 'Precondition Failed',
          'Precondition in headers is false')
      REQUEST_ENTITY_TOO_LARGE = (413, 'Request Entity Too Large',
          'Entity is too large')
      REQUEST_URI_TOO_LONG = (414, 'Request-URI Too Long',
          'URI is too long')
      UNSUPPORTED_MEDIA_TYPE = (415, 'Unsupported Media Type',
          'Entity body in unsupported format')
      REQUESTED_RANGE_NOT_SATISFIABLE = (416,
          'Requested Range Not Satisfiable',
          'Cannot satisfy request range')
      EXPECTATION_FAILED = (417, 'Expectation Failed',
          'Expect condition could not be satisfied')
      MISDIRECTED_REQUEST = (421, 'Misdirected Request',
          'Server is not able to produce a response')
      UNPROCESSABLE_ENTITY = 422, 'Unprocessable Entity'
      LOCKED = 423, 'Locked'
      FAILED_DEPENDENCY = 424, 'Failed Dependency'
      UPGRADE_REQUIRED = 426, 'Upgrade Required'
      PRECONDITION_REQUIRED = (428, 'Precondition Required',
          'The origin server requires the request to be conditional')
      TOO_MANY_REQUESTS = (429, 'Too Many Requests',
          'The user has sent too many requests in '
          'a given amount of time ("rate limiting")')
      REQUEST_HEADER_FIELDS_TOO_LARGE = (431,
          'Request Header Fields Too Large',
          'The server is unwilling to process the request because its header '
          'fields are too large')
  
      # server errors
      INTERNAL_SERVER_ERROR = (500, 'Internal Server Error',
          'Server got itself in trouble')
      NOT_IMPLEMENTED = (501, 'Not Implemented',
          'Server does not support this operation')
      BAD_GATEWAY = (502, 'Bad Gateway',
          'Invalid responses from another server/proxy')
      SERVICE_UNAVAILABLE = (503, 'Service Unavailable',
          'The server cannot process the request due to a high load')
      GATEWAY_TIMEOUT = (504, 'Gateway Timeout',
          'The gateway server did not receive a timely response')
      HTTP_VERSION_NOT_SUPPORTED = (505, 'HTTP Version Not Supported',
          'Cannot fulfill request')
      VARIANT_ALSO_NEGOTIATES = 506, 'Variant Also Negotiates'
      INSUFFICIENT_STORAGE = 507, 'Insufficient Storage'
      LOOP_DETECTED = 508, 'Loop Detected'
      NOT_EXTENDED = 510, 'Not Extended'
      NETWORK_AUTHENTICATION_REQUIRED = (511,
          'Network Authentication Required',
          'The client needs to authenticate to gain network access')
  