Provide_bin_io.Keyval bin_size_t : key Bin_prot.Size.sizerval bin_write_t : key Bin_prot.Write.writerval bin_read_t : key Bin_prot.Read.readerval __bin_read_t__ : (int -> key) Bin_prot.Read.readerval bin_writer_t : key Bin_prot.Type_class.writerval bin_reader_t : key Bin_prot.Type_class.readerval bin_t : key Bin_prot.Type_class.t