code: def test_pick():
      fig = plt.figure()
      fig.text(0.5, 0.5, "hello", ha="center", va="center", picker=True)
      fig.canvas.draw()
  
      picks = []
  
      def handle_pick(event):
          assert event.mouseevent.key == "a"
          picks.append(event)
  
      fig.canvas.mpl_connect("pick_event", handle_pick)
  
      KeyEvent("key_press_event", fig.canvas, "a")._process()
      MouseEvent(
          "button_press_event",
          fig.canvas,
          *fig.transFigure.transform((0.5, 0.5)),
          MouseButton.LEFT,
      )._process()
      KeyEvent("key_release_event", fig.canvas, "a")._process()
      assert len(picks) == 1
  
imports: import re
  from matplotlib import path, transforms
  from matplotlib.backend_bases import FigureCanvasBase, KeyEvent, LocationEvent, MouseButton, MouseEvent, NavigationToolbar2, RendererBase
  from matplotlib.backend_tools import RubberbandBase
  from matplotlib.figure import Figure
  from matplotlib.testing._markers import needs_pgf_xelatex
  import matplotlib.pyplot
  import numpy
  import pytest
label_desc: Use image node_id 8 for calling a global function with example usage: test_pick() without return types