code: def test_quiver_copy():
      fig, ax = plt.subplots()
      uv = dict(u=np.array([1.1]), v=np.array([2.0]))
      q0 = ax.quiver([1], [1], uv["u"], uv["v"])
      uv["v"][0] = 0
      assert q0.V[0] == 2.0
  
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 11 for calling a global function with example usage: test_quiver_copy() without return types