code: def _generate_complete_test_figure(fig_ref):
      fig_ref.set_size_inches((10, 6))
      plt.figure(fig_ref)
  
      plt.suptitle("Can you fit any more in a figure?")
  
      # make some arbitrary data
      x, y = np.arange(8), np.arange(10)
      data = u = v = np.linspace(0, 10, 80).reshape(10, 8)
      v = np.sin(v * -0.6)
  
      # Ensure lists also pickle correctly.
      plt.subplot(3, 3, 1)
      plt.plot(list(range(10)))
      plt.ylabel("hello")
  
      plt.subplot(3, 3, 2)
      plt.contourf(data, hatches=["//", "ooo"])
      plt.colorbar()
  
      plt.subplot(3, 3, 3)
      plt.pcolormesh(data)
  
      plt.subplot(3, 3, 4)
      plt.imshow(data)
      plt.ylabel("hello\nworld!")
  
      plt.subplot(3, 3, 5)
      plt.pcolor(data)
  
      ax = plt.subplot(3, 3, 6)
      ax.set_xlim(0, 7)
      ax.set_ylim(0, 9)
      plt.streamplot(x, y, u, v)
  
      ax = plt.subplot(3, 3, 7)
      ax.set_xlim(0, 7)
      ax.set_ylim(0, 9)
      plt.quiver(x, y, u, v)
  
      plt.subplot(3, 3, 8)
      plt.scatter(x, x**2, label="$x^2$")
      plt.legend(loc="upper left")
  
      plt.subplot(3, 3, 9)
      plt.errorbar(x, x * -0.5, xerr=0.2, yerr=0.4, label="$-.5 x$")
      plt.legend(draggable=True)
  
      fig_ref.align_ylabels()
  
imports: from io import BytesIO
  import ast
  import pickle
  import pickletools
  import numpy
  import pytest
  import matplotlib
  from matplotlib import cm
  from matplotlib.testing import subprocess_run_helper
  from matplotlib.testing.decorators import check_figures_equal
  from matplotlib.dates import rrulewrapper
  from matplotlib.lines import VertexSelector
  import matplotlib.pyplot
  import matplotlib.transforms
  import matplotlib.figure
  from mpl_toolkits.axes_grid1 import parasite_axes
label_desc: Use image node_id 2 for calling a global function with example usage: _generate_complete_test_figure(fig_ref) without return types