chore: adjusts type hints to account for complications with mypy part 4

chalmerlowe · chalmerlowe · commit c714005b8f1e · 2026-04-10T15:26:52.000-04:00
diff --git a/packages/bigframes/bigframes/core/blocks.py b/packages/bigframes/bigframes/core/blocks.py
@@ -2796,6 +2796,7 @@ def _is_monotonic(
                 )
                 block = block.drop_columns([equal_monotonic_id, strict_monotonic_id])
 
+        assert last_result_id is not None
         block, monotonic_result_id = block.apply_binary_op(
             last_result_id,
             last_notna_id,

Original file line number	Diff line number	Diff line change
`@@ -2796,6 +2796,7 @@ def _is_monotonic(`
`2796`	`2796`	`)`
`2797`	`2797`	`block = block.drop_columns([equal_monotonic_id, strict_monotonic_id])`
`2798`	`2798`
	`2799`	`+ assert last_result_id is not None`
`2799`	`2800`	`block, monotonic_result_id = block.apply_binary_op(`
`2800`	`2801`	`last_result_id,`
`2801`	`2802`	`last_notna_id,`