nt-encoding' header.

:param redirect:
    If True, automatically handle redirects (status codes 301, 302,
    303, 307, 308). Each redirect counts as a retry. Disabling retries
    will disable redirect, too.

:param retries:
    Configure the number of retries to allow before raising a
    :class:`~urllib3.exceptions.MaxRetryError` exception.

    If ``None`` (default) will retry 3 times, see ``Retry.DEFAULT``. Pass a
    :class:`~urllib3.util.retry.Retry` object for fine-grained control
    over different types of retries.
    Pass an integer number to retry connection errors that many times,
    but no other types of errors. Pass zero to never retry.

    If ``False``, then retries are disabled and any exception is raised
    immediately. Also, instead of raising a MaxRetryError on redirects,
    the redirect response will be returned.

:type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.

:param timeout:
    If specified, overrides the default timeout for this one
    request. It may be a float (in seconds) or an instance of
    :class:`urllib3.util.Timeout`.

:param json:
    Data to encode and send as JSON with UTF-encoded in the request body.
    The ``"Content-Type"`` header will be set to ``"application/json"``
    unless specified otherwise.
r3