P11_attributeSourcetype _ repr = | Repr_object_class : P11_object_class.t repr| Repr_bool : bool repr| Repr_string : string repr| Repr_key_type : P11_key_type.t repr| Repr_not_implemented : P11_attribute_type.not_implemented repr| Repr_bigint : P11_bigint.t repr| Repr_ulong : Unsigned.ULong.t repr| Repr_key_gen_mechanism : P11_key_gen_mechanism.t repr| Repr_data : string reprReturn how this attribute type is represented. This is an implementation detail, do not rely on this outside of pkcs11.