code: def cast_types(self):
      return [self.__class__(_m) for _m in _cast_dict[self.NAME]]
  
imports: import os
  import sys
  import copy
  import platform
  import pytest
  import numpy
  from numpy.testing import assert_, assert_equal
  from numpy.core.multiarray import typeinfo
  from .None import util
label_desc: Use image node_id 4 for calling the Type obj's underlying member method code with example usage: obj.cast_types() and returns: unknown