code: def test_ops(self):
      arr = self.arr
      bound = arr.boundary
      assert bound.crs == self.osgb
  
      cent = arr.centroid
      assert cent.crs == self.osgb
  
      hull = arr.convex_hull
      assert hull.crs == self.osgb
  
      envelope = arr.envelope
      assert envelope.crs == self.osgb
  
      exterior = arr.exterior
      assert exterior.crs == self.osgb
  
      representative_point = arr.representative_point()
      assert representative_point.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 23 for calling the TestGeometryArrayCRS obj's underlying member method code with example usage: obj.test_ops() without return types