import { z } from 'zod';
export declare const AiMessageDocumentSchema: z.ZodObject<{
    id: z.ZodOptional<z.ZodString>;
    role: z.ZodUnion<readonly [z.ZodLiteral<"system">, z.ZodLiteral<"user">, z.ZodLiteral<"assistant">]>;
    metadata: z.ZodOptional<z.ZodAny>;
    parts: z.ZodArray<z.ZodAny>;
}, z.core.$strip>;
export type AiMessageDocumentContentType = z.infer<typeof AiMessageDocumentSchema>;
export declare class AiMessageDocument {
    content: z.infer<typeof AiMessageDocumentSchema>;
}
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