code: def __repr__(self):
      return "Features(%s)" % ",".join(
          map(lambda x: x.name, self._fd_spec)
      )
  
imports: import atexit
  import os
  import shutil
  import tempfile
  import warnings
  from copy import deepcopy
  import numpy
  import numpy
  from coremltools import ComputeUnit
  from coremltools._deps import _HAS_TF_1, _HAS_TF_2, _HAS_TORCH
  from coremltools.converters.mil.mil.program import Program
  from ..proto import FeatureTypes_pb2
  from ..proto import MIL_pb2
  from ..proto import Model_pb2
  from .utils import _MLMODEL_EXTENSION, _MLPACKAGE_AUTHOR_NAME, _MLPACKAGE_EXTENSION, _MODEL_FILE_NAME, _WEIGHTS_DIR_NAME, _create_mlpackage, _has_custom_layer, _is_macos, _macos_version
  from .utils import load_spec
  from .utils import save_spec
label_desc: Use image node_id 2 for calling the _FeatureDescription obj's underlying member method code with example usage: obj.__repr__() and returns: unknown