def METHOD_NAME(self):
    class NWBConverterChild(NWBConverter):
        data_interface_classes = dict(InterfaceA=self.InterfaceA, InterfaceB=self.InterfaceB)
    source_data = dict(InterfaceA=dict(), InterfaceB=dict())
    converter_child_class = NWBConverterChild(source_data)
    interface_a = self.InterfaceA()
    interface_b = self.InterfaceB()
    data_interfaces_dict = dict(InterfaceA=interface_a, InterfaceB=interface_b)
    converter_arguments = ConverterPipe(data_interfaces=data_interfaces_dict)
    assert converter_arguments.data_interface_classes == converter_child_class.data_interface_classes