import { z } from 'zod';
/**
 * An out-of-band notification used to inform the receiver of a progress update for a long-running request.
 */
export declare const progressNotificationSchema: z.ZodObject<{
    jsonrpc: z.ZodLiteral<"2.0">;
} & {
    method: z.ZodLiteral<"notifications/progress">;
    params: z.ZodObject<{
        /**
         * The progress token which was given in the initial request, used to associate this notification with the request that is proceeding.
         */
        progressToken: z.ZodUnion<[z.ZodString, z.ZodNumber]>;
        /**
         * The progress thus far. This should increase every time progress is made, even if the total is unknown.
         */
        progress: z.ZodNumber;
        /**
         * Total number of items to process (or total progress required), if known.
         */
        total: z.ZodOptional<z.ZodNumber>;
        /**
         * An optional message describing the current progress.
         */
        message: z.ZodOptional<z.ZodString>;
    }, "strip", z.ZodTypeAny, {
        progressToken: string | number;
        progress: number;
        total?: number | undefined;
        message?: string | undefined;
    }, {
        progressToken: string | number;
        progress: number;
        total?: number | undefined;
        message?: string | undefined;
    }>;
}, "strip", z.ZodTypeAny, {
    params: {
        progressToken: string | number;
        progress: number;
        total?: number | undefined;
        message?: string | undefined;
    };
    method: "notifications/progress";
    jsonrpc: "2.0";
}, {
    params: {
        progressToken: string | number;
        progress: number;
        total?: number | undefined;
        message?: string | undefined;
    };
    method: "notifications/progress";
    jsonrpc: "2.0";
}>;
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