Arize Phoenix TS
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    openAIToolChoiceToVercelAI: ZodPipe<
        ZodUnion<
            readonly [
                ZodLiteral<"auto">,
                ZodLiteral<"none">,
                ZodLiteral<"required">,
                ZodObject<
                    {
                        function: ZodObject<{ name: ZodString }, $strip>;
                        type: ZodLiteral<"function">;
                    },
                    $strip,
                >,
            ],
        >,
        ZodTransform<
            "none"
            | "auto"
            | "required"
            | { toolName: string; type: "tool" },

                | "none"
                | "auto"
                | "required"
                | { function: { name: string }; type: "function" },
        >,
    > = ...