code: def test_deepcopy(proj_to_copy):
      prj_cp = copy.deepcopy(proj_to_copy)
      assert proj_to_copy.proj4_params == prj_cp.proj4_params
      assert proj_to_copy == prj_cp
  
imports: import copy
  from io import BytesIO
  import os
  from pathlib import Path
  import pickle
  import warnings
  import numpy
  from numpy.testing import assert_almost_equal, assert_array_equal
  from numpy.testing import assert_array_almost_equal
  import pyproj
  import pytest
  import shapely.geometry
  import cartopy.crs
label_desc: Use image node_id 3 for calling a global function with example usage: test_deepcopy(proj_to_copy) without return types