gistfile1.txt

    PyHeapExtensibleTypeObject MyProvider_Type =
    {
        /* PyHeapTypeObject etp_heaptype */
        {
            /* PyTypeObject ht_type */
            {
                PyVarObject_HEAD_INIT(0, 0),
                "myprovidertype", /*tp_name*/,
                sizeof(MyProvider_Object), /* tp_basicsize */
                0,                        /* tp_itemsize */
                ...
                &MyProvider_Type.etp_heaptype.as_number, /*tp_as_number*/
                &MyProvider_Type.etp_heaptype.as_sequence, /*tp_as_sequence*/
                &MyProvider_Type.etp_heaptype.as_mapping, /*tp_as_mapping*/
                ...
                &MyProvider_Type.etp_heaptype.as_buffer, /*tp_as_buffer*/
                ...
            },

            /* PyNumberMethods as_number */
            {
                0, /*nb_add*/
                ...
            },

            ...

            0, /* ht_name */
            0 /* ht_slots */

        }, /* end of PyHeapTypeObject */

        2, /* etp_custom_slot_count */
        my_custom_slots /* etp_custom_slot_table */
    };