code: def test_central_longitude(self, lon):
      crs = ccrs.Sinusoidal(central_longitude=lon)
      other_args = {"ellps=WGS84", f"lon_0={lon}", "x_0=0.0", "y_0=0.0"}
      check_proj_params("sinu", crs, other_args)
  
      assert_almost_equal(
          np.array(crs.x_limits),
          [-20037508.3428, 20037508.3428],
          decimal=4,
      )
      assert_almost_equal(
          np.array(crs.y_limits),
          [-10001965.7293, 10001965.7293],
          decimal=4,
      )
  
file_path: cartopy/lib/cartopy/tests/crs/test_sinusoidal.py
imports: import numpy
  from numpy.testing import assert_almost_equal
  import pyproj
  import pytest
  import cartopy.crs
  from .helpers import check_proj_params
label_desc: Use image node_id 4 for calling the TestSinusoidal obj's underlying member method code with example usage: obj.test_central_longitude(lon) without return types