312                     b.put_varint(0x00)?;  in to_bytes()
319                 b.put_varint(0x01)?;  in to_bytes()
323                 b.put_varint(0x02)?;  in to_bytes()
330                 b.put_varint(first.end - 1)?;  in to_bytes()
331                 b.put_varint(*ack_delay)?;  in to_bytes()
332                 b.put_varint(it.len() as u64)?;  in to_bytes()
333                 b.put_varint(ack_block)?;  in to_bytes()
341                     b.put_varint(gap)?;  in to_bytes()
342                     b.put_varint(ack_block)?;  in to_bytes()
353                 b.put_varint(0x04)?;  in to_bytes()
355                 b.put_varint(*stream_id)?;  in to_bytes()
356                 b.put_varint(*error_code)?;  in to_bytes()
357                 b.put_varint(*final_size)?;  in to_bytes()
364                 b.put_varint(0x05)?;  in to_bytes()
366                 b.put_varint(*stream_id)?;  in to_bytes()
367                 b.put_varint(*error_code)?;  in to_bytes()
371                 b.put_varint(0x06)?;  in to_bytes()
373                 b.put_varint(data.off() as u64)?;  in to_bytes()
374                 b.put_varint(data.len() as u64)?;  in to_bytes()
379                 b.put_varint(0x07)?;  in to_bytes()
381                 b.put_varint(token.len() as u64)?;  in to_bytes()
398                 b.put_varint(u64::from(ty))?;  in to_bytes()
400                 b.put_varint(*stream_id)?;  in to_bytes()
401                 b.put_varint(data.off() as u64)?;  in to_bytes()
402                 b.put_varint(data.len() as u64)?;  in to_bytes()
407                 b.put_varint(0x10)?;  in to_bytes()
409                 b.put_varint(*max)?;  in to_bytes()
413                 b.put_varint(0x11)?;  in to_bytes()
415                 b.put_varint(*stream_id)?;  in to_bytes()
416                 b.put_varint(*max)?;  in to_bytes()
420                 b.put_varint(0x12)?;  in to_bytes()
422                 b.put_varint(*max)?;  in to_bytes()
426                 b.put_varint(0x13)?;  in to_bytes()
428                 b.put_varint(*max)?;  in to_bytes()
432                 b.put_varint(0x14)?;  in to_bytes()
434                 b.put_varint(*limit)?;  in to_bytes()
438                 b.put_varint(0x15)?;  in to_bytes()
440                 b.put_varint(*stream_id)?;  in to_bytes()
441                 b.put_varint(*limit)?;  in to_bytes()
445                 b.put_varint(0x16)?;  in to_bytes()
447                 b.put_varint(*limit)?;  in to_bytes()
451                 b.put_varint(0x17)?;  in to_bytes()
453                 b.put_varint(*limit)?;  in to_bytes()
462                 b.put_varint(0x18)?;  in to_bytes()
464                 b.put_varint(*seq_num)?;  in to_bytes()
465                 b.put_varint(*retire_prior_to)?;  in to_bytes()
472                 b.put_varint(0x19)?;  in to_bytes()
474                 b.put_varint(*seq_num)?;  in to_bytes()
478                 b.put_varint(0x1a)?;  in to_bytes()
484                 b.put_varint(0x1b)?;  in to_bytes()
494                 b.put_varint(0x1c)?;  in to_bytes()
496                 b.put_varint(*error_code)?;  in to_bytes()
497                 b.put_varint(*frame_type)?;  in to_bytes()
498                 b.put_varint(reason.len() as u64)?;  in to_bytes()
503                 b.put_varint(0x1d)?;  in to_bytes()
505                 b.put_varint(*error_code)?;  in to_bytes()
506                 b.put_varint(reason.len() as u64)?;  in to_bytes()
511                 b.put_varint(0x1e)?;  in to_bytes()
520                 b.put_varint(u64::from(ty))?;  in to_bytes()
522                 b.put_varint(data.len() as u64)?;  in to_bytes()