code: def test_function_call_with_dict_input(func):
      """Tests with dict input, unpacking via preprocess_pipeline"""
      data = {"a": 1, "b": 2}
      assert (
          func(None, data.keys(), data.values())
          == "x: ['a', 'b'], y: [1, 2], ls: x, w: xyz, label: None"
      )
  
imports: import re
  import sys
  import numpy
  import pytest
  from matplotlib import _preprocess_data
  from matplotlib.axes import Axes
  from matplotlib.testing import subprocess_run_for_testing
  from matplotlib.testing.decorators import check_figures_equal
label_desc: Use image node_id 4 for calling a global function with example usage: test_function_call_with_dict_input(func) without return types