code: def test_valid_epsg_mixed_ints_strings(crs_from, crs_to):
      Transformer.from_crs(to_epsg_string(crs_from), crs_to)
      Transformer.from_crs(str(crs_from), crs_to)
      Transformer.from_crs(crs_from, to_epsg_string(crs_to))
      Transformer.from_crs(crs_from, str(crs_to))
  
imports: import cupy
  import geopandas
  import numpy
  import pytest
  from cupy.testing import assert_allclose
  from pyproj import Transformer
  from pyproj.enums import TransformDirection
  from shapely.geometry import Point
  import cuspatial
  from cuproj import Transformer
label_desc: Use image node_id 5 for calling a global function with example usage: test_valid_epsg_mixed_ints_strings(crs_from, crs_to) without return types