`object
method datagram_type : Uq_engines.datagram_type
method descriptor : Unix.file_descr
method recvfrom :
string -> int -> int -> Unix.msg_flag list -> int * Uq_engines.sockspec
method sendto :
string -> int -> int -> Unix.msg_flag list -> Uq_engines.sockspec -> int
method shut_down : unit -> unit
method socket_domain : Unix.socket_domain
method socket_protocol : int
method socket_type : Unix.socket_type
end`