How to use the jsii._reference_map function in jsii

def deco(cls):
        cls.__jsii_type__ = jsii_type
        _reference_map.register_enum(cls)
        return cls

def deco(cls):
        cls.__jsii_type__ = jsii_type
        cls.__jsii_struct_bases__ = jsii_struct_bases
        cls.__jsii_name_mapping__ = name_mapping
        _reference_map.register_data_type(cls)
        return cls

def __new__(cls, name, bases, attrs, *, jsii_type=None):
        # We want to ensure that subclasses of a JSII class do not require setting the
        # jsii_type keyword argument. They should be able to subclass it as normal.
        # Since their parent class will have the __jsii_type__ variable defined, they
        # will as well anyways.
        if jsii_type is not None:
            attrs["__jsii_type__"] = jsii_type

        obj = super().__new__(cls, name, bases, attrs)

        # Now that we've created the class, we'll need to register it with our reference
        # mapper. We only do this for types that are actually jsii types, and not any
        # subclasses of them.
        if jsii_type is not None:
            _reference_map.register_type(obj)

        return obj

def deco(iface):
        iface.__jsii_type__ = jsii_type
        _reference_map.register_interface(iface)
        return iface