APIs

classHttpRequestParser:def__init__(self,protocol):"""HttpRequestParser        protocol -- a Python object with the following methods        (all optional):          - on_message_begin()          - on_url(url: bytes)          - on_header(name: bytes, value: bytes)          - on_headers_complete()          - on_body(body: bytes)          - on_message_complete()          - on_chunk_header()          - on_chunk_complete()          - on_status(status: bytes)        """defget_http_version(self)->str:"""Return an HTTP protocol version."""defshould_keep_alive(self)->bool:"""Return ``True`` if keep-alive mode is preferred."""defshould_upgrade(self)->bool:"""Return ``True`` if the parsed request is a valid Upgrade request.The method exposes a flag set just before on_headers_complete.Calling this method earlier will only yield `False`."""deffeed_data(self,data:bytes):"""Feed data to the parser.        Will eventually trigger callbacks on the ``protocol``        object.        On HTTP upgrade, this method will raise an        ``HttpParserUpgrade`` exception, with its sole argument        set to the offset of the non-HTTP data in ``data``.        """defget_method(self)->bytes:"""Return HTTP request method (GET, HEAD, etc)"""classHttpResponseParser:"""Has all methods except ``get_method()`` that    HttpRequestParser has."""defget_status_code(self)->int:"""Return the status code of the HTTP response"""defparse_url(url:bytes):"""Parse URL strings into a structured Python object.    Returns an instance of ``httptools.URL`` class with the    following attributes:      - schema: bytes      - host: bytes      - port: int      - path: bytes      - query: bytes      - fragment: bytes      - userinfo: bytes    """

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