code: def xr():
      """Fixture to import xarray."""
      xr = pytest.importorskip("xarray")
      return xr
  
file_path: catboost/contrib/python/matplotlib/py3/matplotlib/testing/conftest.py
imports: import pytest
  import sys
  import matplotlib
  from matplotlib import _api
label_desc: Use image node_id 5 for calling a global function with example usage: xr() and returns: xr