d: the stream id to use in the generated H2Frames
:param str/None body: the eventual body of the request, that is added
  to the generated frames
:param int max_frm_sz: the maximum frame size. This is used to split
  the headers and data frames according to the maximum frame size
  negotiated for this connection.
:param int max_hdr_lst_sz: the maximum size of a "header fragment" as
  defined in RFC7540
:param callable is_sensitive: callback that returns True if the
  provided header is sensible and must be stored in a header packet
  requesting this header never to be indexed
:param callable should_index: callback that returns True if the
  provided header should be stored in a header packet requesting
  indexation in the dynamic header table.
:param bool register: whether to register new headers with incremental
  indexing as we parse them
:raises: Exception
r