fix flake8 and black issues

Author: prasad-sawantdesai

imas/ids_slice.py

@@ -442,9 +442,10 @@ def values(self) -> List[Any]:
         through a slice, without requiring explicit looping through the
         original collection.
 
-        For multi-dimensional access to values:
-        - Use direct indexing: ``ids_obj[i1].collection[i2].value`` for best
-          performance and clarity
+        For multi-dimensional access to values, use one of these approaches:
+
+        - Use direct indexing: ``ids_obj[i1].collection[i2].value`` (best
+          performance and clarity)
         - Use ``.to_array()`` if you need numpy array integration
 
         Returns:

imas/test/test_ids_slice.py

@@ -313,7 +313,8 @@ def test_unit_slice_element_integer_indexing(self, wall_varying_sizes):
         units_slice = units[:2]
         element_slice = units_slice.element
 
-        # Integer indexing not supported on IDSSlice - use list() to check length instead
+        # Integer indexing not supported on IDSSlice
+        # Use list() to check length instead
         elements_list = list(element_slice)
         assert len(elements_list) == 2
         # Access beyond available elements should be handled via list indexing