def _get_headers_from_args(method=None, url=None, body=None, headers=None,
    retries=None, redirect=None, assert_same_host=True, timeout=None,
    pool_timeout=None, release_conn=None, chunked=False, body_pos=None, **
    response_kw):
    """
    extract headers from arguments
    """
    return headers
