Csexp.Sval input : in_channel -> (sexp, string) resultval input_opt : in_channel -> (sexp option, string) resultval input_many : in_channel -> (sexp list, string) resultval serialised_length : sexp -> intval to_string : sexp -> stringval to_channel : out_channel -> sexp -> unitmodule Parser : sig ... endmodule type Input = sig ... endmodule Make_parser (Input : Input) : sig ... end