code: def data():
      return {
          "input_1": {
              "features": np.array([[1, 6], [2, 5], [3, 4]]),
              "labels": np.array([2, 5, 3]),
          },
          "input_2": {
              "extra_features": np.array(
                  [[5, 7, 3], [67, 4, 5], [6, 13, 14]]
              )
          },
          "input_3": {
              "images": np.array(
                  [
                      [[0, 255], [255, 0]],
                      [[255, 0], [0, 255]],
                      [[255, 255], [0, 0]],
                  ]
              ),
              "labels": np.array([1, 1, 0]),
          },
      }
  
file_path: steppy/tests/test_base.py
imports: import numpy
  import pytest
  from steppy.base import Step, StepError, make_transformer, IdentityOperation
  from steppy.adapter import Adapter, E
label_desc: Use image node_id 1 for calling a global function with example usage: data() and returns: dict