H2_frame.Flagsval none : tNo flags set.
val end_stream : tEND_STREAM (0x01) - Indicates final frame in a stream.
val end_headers : tEND_HEADERS (0x04) - Indicates header block is complete.
val padded : tPADDED (0x08) - Frame is padded.
val priority : tPRIORITY (0x20) - Priority information present.
val ack : tACK (0x01) - Acknowledgment (for SETTINGS and PING).
val pp : Format.formatter -> t -> unitPretty printer for flags.