code: def double_ndarray(self, data: NDArray[Any]) -> NDArray[Any]:
      assert isinstance(data, np.ndarray)
      return data * 2
  
file_path: BentoML/tests/e2e/bento_server_grpc/python_model.py
imports: from __future__ import annotations
  from typing import TYPE_CHECKING
  from typing import Any
  import numpy
  import pandas
label_desc: Use image node_id 4 for calling the PythonFunction obj's underlying member method code with example usage: obj.double_ndarray(data) and returns: unknown