def METHOD_NAME(self):
    grid_definition_template_12(self.test_cube, self.mock_grib)
    self._check_key("latitudeOfReferencePoint", 49000000.0)
    self._check_key("longitudeOfReferencePoint", -2000000.0)
    self._check_key("XR", 40000000.0)
    self._check_key("YR", -10000000.0)