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