`val bin_t : Key.t Bin_prot.Type_class.t`
`val bin_read_t : Key.t Bin_prot.Read.reader`
`val __bin_read_t__ : (Core_kernel__.Import.int ‑> Key.t) Bin_prot.Read.reader`
`val bin_reader_t : Key.t Bin_prot.Type_class.reader`
`val bin_size_t : Key.t Bin_prot.Size.sizer`
`val bin_write_t : Key.t Bin_prot.Write.writer`
`val bin_writer_t : Key.t Bin_prot.Type_class.writer`
`val bin_shape_t : Bin_prot.Shape.t`