import * as z from "zod/v3";
import { Result as SafeParseResult } from "../../types/fp.js";
import { SDKValidationError } from "../errors/sdkvalidationerror.js";
/**
 * Item reference item: A pointer to another response item by ID.
 */
export type ItemReferenceWithId = {
    type?: "item_reference" | undefined;
    /**
     * The unique ID of the message.
     */
    id: string;
    /**
     * The ID of the response that created this item, if any.
     */
    responseId?: string | null | undefined;
    /**
     * Metadata from the response that created this item, if any.
     */
    metadata?: {
        [k: string]: string;
    } | null | undefined;
};
/** @internal */
export declare const ItemReferenceWithId$inboundSchema: z.ZodType<ItemReferenceWithId, z.ZodTypeDef, unknown>;
/** @internal */
export type ItemReferenceWithId$Outbound = {
    type: "item_reference";
    id: string;
    response_id?: string | null | undefined;
    metadata?: {
        [k: string]: string;
    } | null | undefined;
};
/** @internal */
export declare const ItemReferenceWithId$outboundSchema: z.ZodType<ItemReferenceWithId$Outbound, z.ZodTypeDef, ItemReferenceWithId>;
export declare function itemReferenceWithIdToJSON(itemReferenceWithId: ItemReferenceWithId): string;
export declare function itemReferenceWithIdFromJSON(jsonString: string): SafeParseResult<ItemReferenceWithId, SDKValidationError>;
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