Update packages/bigframes/bigframes/bigquery/_operations/ai.py

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: sycai

packages/bigframes/bigframes/bigquery/_operations/ai.py

@@ -821,7 +821,7 @@ def if_(
     optimization_mode: Literal["minimize_cost", "maximize_quality"] = "minimize_cost",
     max_error_ratio: float = 1.0,
 ) -> series.Series:
-    """
+    max_error_ratio: float | None = None,
     Evaluates the prompt to True or False. Compared to `ai.generate_bool()`, this function
     provides optimization such that not all rows are evaluated with the LLM.