/*!
 * Copyright (c) Microsoft Corporation and contributors. All rights reserved.
 * Licensed under the MIT License.
 */
import type { BatchId } from "./opLifecycle/index.js";
/**
 * Syntactic sugar for casting
 */
export declare function asBatchMetadata(metadata: unknown): Partial<IBatchMetadata> | undefined;
/**
 * Syntactic sugar for casting
 */
export declare function asEmptyBatchLocalOpMetadata(localOpMetadata: unknown): IEmptyBatchMetadata | undefined;
/**
 * Properties put on the localOpMetadata object for empty batches
 */
export interface IEmptyBatchMetadata {
    emptyBatch?: true;
}
/**
 * Properties put on the op metadata object for batch tracking
 */
export interface IBatchMetadata {
    /**
     * Set on first/last messages of a multi-message batch, to true/false respectively
     */
    batch?: boolean;
    /**
     * Maybe set on first message of a batch, to the batchId generated when resubmitting (set/fixed on first resubmit)
     */
    batchId?: BatchId;
}
/**
 * Blob handling makes assumptions about what might be on the metadata. This interface codifies those assumptions, but does not validate them.
 */
export interface IBlobMetadata {
    blobId: string;
    localId: string;
}
export declare const isBlobMetadata: (metadata: unknown) => metadata is IBlobMetadata;
/**
 * ContainerRuntime needs to know if this is a replayed savedOp as those need to be skipped in stashed ops scenarios.
 */
export interface ISavedOpMetadata {
    savedOp?: boolean;
}
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