code: def __str__(self):
      return str(self.shape)
  
imports: from enum import Enum
  from typing import Optional
  import numpy
  from coremltools.converters.mil.mil import types
  from coremltools.converters.mil.mil.types.symbolic import is_symbolic
  from coremltools.converters.mil.mil.types.type_mapping import is_builtin, numpy_type_to_builtin_type
label_desc: Use image node_id 2 for calling the Shape obj's underlying member method code with example usage: obj.__str__() and returns: str