code: def test_projection__from_string():
      crs = ccrs.Projection("NAD83 / Pennsylvania South")
      assert (
          crs.as_geocentric().datum.name == "North American Datum 1983"
      )
      assert_almost_equal(
          crs.bounds,
          [
              361633.1351868,
              859794.6690229,
              45575.5693199,
              209415.9845754,
          ],
      )
  
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 7 for calling a global function with example usage: test_projection__from_string() without return types