import z from "zod";
/**
 * Vercel AI SDK Tool Choice Schema
 */
export declare const vercelAIToolChoiceSchema: z.ZodUnion<readonly [z.ZodLiteral<"auto">, z.ZodLiteral<"none">, z.ZodLiteral<"required">, z.ZodObject<{
    type: z.ZodLiteral<"tool">;
    toolName: z.ZodString;
}, z.core.$strip>]>;
export type VercelAIToolChoice = z.infer<typeof vercelAIToolChoiceSchema>;
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