Flake8 error fix caused by Sphinx error fix

improver/precipitation_type/snow_splitter.py

@@ -127,7 +127,7 @@ def process(self, cubes: CubeList,) -> Cube:
         Raises:
             ValueError: If, at some grid square, both snow_cube and rain_cube have a probability of
             0
-        """
+        """  # noqa: W605  (flake8 objects to \_ in "lwe\_" that is required for Sphinx)
 
         rain_cube, snow_cube, precip_cube = self.separate_input_cubes(cubes)