code: def clear_signature_defs(tflite_model):
      """Clears SignatureDefs from the Metadata of a TfLite flatbuffer buffer.
  
      Args:
        tflite_model: TFLite model buffer to remove signature_defs.
  
      Returns:
        buffer: A TFLite model binary identical to model buffer with
          no SignatureDef metadata.
  
      Raises:
        ValueError:
          tflite_model buffer does not contain a valid TFLite model.
      """
      model = tflite_model
      if not isinstance(tflite_model, bytearray):
          model = bytearray(tflite_model)
      return signature_def_util.ClearSignatureDefs(model)
  
imports: from tensorflow.core.protobuf import meta_graph_pb2
  from tensorflow.lite.tools.signature import _pywrap_signature_def_util_wrapper
label_desc: Use image node_id 3 for calling a global function with example usage: clear_signature_defs(tflite_model) and returns: signature_def_util