code: def transform(self, data_inputs):
      return (2 * np.array(data_inputs)).tolist()
  
imports: import copy
  from typing import Any, Tuple
  import numpy
  import pytest
  from neuraxle.base import BaseStep
  from neuraxle.steps.column_transformer import ColumnTransformer
label_desc: Use image node_id 5 for calling the MultiplyBy2 obj's underlying member method code with example usage: obj.transform(data_inputs) and returns: unknown