code: def test_quiver_single():
      fig, ax = plt.subplots()
      ax.margins(0.1)
      ax.quiver([1], [1], [2], [2])
  
imports: import platform
  import sys
  import numpy
  import pytest
  from matplotlib import pyplot
  from matplotlib.testing.decorators import image_comparison
label_desc: Use image node_id 10 for calling a global function with example usage: test_quiver_single() without return types