code: def plot_func(ax, x, y, ls="x", label=None, w="xyz"):
      return f"x: {list(x)}, y: {list(y)}, ls: {ls}, w: {w}, label: {label}"
  
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 1 for calling a global function with example usage: plot_func(ax, x, y, ls, label, w) and returns: str, list, str, list, str, ls, str, w, str, label