code: def test_empty_arrays():
      # Check that plotting an empty array with a dtype works
      plt.scatter(np.array([], dtype="datetime64[ns]"), np.array([]))
  
imports: from datetime import datetime, timezone, timedelta
  import platform
  from unittest.mock import MagicMock
  import matplotlib.pyplot
  from matplotlib.testing.decorators import check_figures_equal, image_comparison
  import matplotlib.units
  from matplotlib.category import UnitData
  import numpy
  import pytest
label_desc: Use image node_id 7 for calling a global function with example usage: test_empty_arrays() without return types