code: def _remove_annotation(sig):
      """Removes annotation from a python Signature."""
      parameters = [
          p.replace(annotation=p.empty) for p in sig.parameters.values()
      ]
      return sig.replace(
          parameters=parameters, return_annotation=sig.empty
      )
  
imports: import collections
  import itertools
  import typing
  from tensorflow.python.framework import _pywrap_python_api_dispatcher
  from tensorflow.python.framework import ops
  from tensorflow.python.util import tf_decorator
  from tensorflow.python.util import tf_export
  from tensorflow.python.util import tf_inspect
  from tensorflow.python.util import traceback_utils
  from tensorflow.python.util import type_annotations
  from tensorflow.python.util.tf_export import tf_export
label_desc: Use image node_id 2 for calling a global function with example usage: _remove_annotation(sig) and returns: sig