Arize Phoenix TS
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    openAIToolCallsSchema: ZodArray<
        ZodObject<
            {
                function: ZodObject<{ arguments: ZodString; name: ZodString }, $loose>;
                id: ZodString;
                type: ZodPipe<
                    ZodOptional<ZodLiteral<"function">>,
                    ZodTransform<"function", "function" | undefined>,
                >;
            },
            $strip,
        >,
    > = ...

    The zod schema for multiple OpenAI Tool Calls