Arize Phoenix TS
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    phoenixToolDefinitionSchema: ZodObject<
        {
            function: ZodObject<
                {
                    description: ZodOptional<ZodString>;
                    name: ZodString;
                    parameters: ZodOptional<ZodRecord<ZodString, ZodUnknown>>;
                    strict: ZodOptional<ZodBoolean>;
                },
                $strip,
            >;
            type: ZodLiteral<"function">;
        },
        $strip,
    > = ...

    The Phoenix tool definition schema