code: def test_use_priority():
      manage_plugins.use_plugin(priority_plugin)
      plug, func = manage_plugins.plugin_store["imread"][0]
      np.testing.assert_equal(plug, priority_plugin)
  
      manage_plugins.use_plugin("matplotlib")
      plug, func = manage_plugins.plugin_store["imread"][0]
      np.testing.assert_equal(plug, "matplotlib")
  
file_path: scikit-image/skimage/io/tests/test_plugin.py
imports: from contextlib import contextmanager
  import numpy
  import pytest
  from skimage._shared._dependency_checks import has_mpl
  from skimage import io
  from skimage.io import manage_plugins
label_desc: Use image node_id 5 for calling a global function with example usage: test_use_priority() without return types