code: def test_plot_ax_2d():
      fig = plt.figure()
      ax = fig.add_subplot(111)
      geo = plot.plot(data, ax=ax, show=False, ndims=2)
      assert isinstance(geo, DataGeometry)
  
imports: import pytest
  import numpy
  import matplotlib
  import matplotlib.pyplot
  from hypertools.plot import plot
  from hypertools.tools.reduce import reduce
  from hypertools.tools.load import load
  from hypertools.datageometry import DataGeometry
label_desc: Use image node_id 20 for calling a global function with example usage: test_plot_ax_2d() without return types