code: def test_affinity_methods(self, attr, arg):
      result = getattr(self.arr, attr)(*arg)
  
      assert result.crs == self.osgb
  
imports: import random
  import warnings
  import numpy
  import pandas
  import pyproj
  import pytest
  from shapely.geometry import Point, Polygon, LineString
  from geopandas import GeoSeries, GeoDataFrame, points_from_xy, read_file
  from geopandas.array import from_shapely, from_wkb, from_wkt, GeometryArray
  from geopandas.testing import assert_geodataframe_equal
label_desc: Use image node_id 26 for calling the TestGeometryArrayCRS obj's underlying member method code with example usage: obj.test_affinity_methods(attr, arg) without return types