code: def h(self, x: np.ndarray) -> np.ndarray:
      return np.tanh(x)
  
file_path: onnx/onnx/reference/ops/op_lstm.py
imports: from typing import Tuple
  import numpy
  from onnx.reference.op_run import OpRun
label_desc: Use image node_id 4 for calling the CommonLSTM obj's underlying member method code with example usage: obj.h(x) and returns: np