Containers_leb128.Encodeval u64 : Byte_buffer.t -> int64 -> unitWrite a unsigned int
val i64 : Byte_buffer.t -> int64 -> unitWrite a signed int via zigzag encoding
val uint : Byte_buffer.t -> int -> unitTurn an uint into a u64 and write it
val int : Byte_buffer.t -> int -> unitTurn an int into a int64 and write it