header_key() = {hdr_key, atom() | binary()}
known_header() = from | to | callid | cseq | maxforwards | topmost_via | content_type | allow | route | record_route | supported | unsupported | require | proxy_require | contact | expires | minexpires | date | www_authenticate | authorization | proxy_authenticate | proxy_authorization | subscription_state | event | refer_to | replaces | rseq
name_forms() = header_key() | known_header() | binary()
all_known_headers/0 | |
known_header_form/1 | |
make_key/1 | |
make_known_key/1 | |
print_form/1 |
all_known_headers() -> any()
known_header_form(HeaderName::binary() | header_key()) -> {ok, known_header()} | not_found
make_key(Key::name_forms()) -> header_key()
make_known_key(KnownHeader::atom()) -> header_key() | not_found
print_form(HeaderForm::name_forms()) -> binary()