import { S3ObjectStore } from '@cumulus/aws-client';
/**
 * Returns a class to interact with the object store appropriate for
 * the provided protocol, or null if no such store exists.
 *
 * @param {string} protocol - the protocol used in object store URLs.  This may be a full URL, in
 *   which case the protocol will be read from the front of the URL.
 * @returns {S3ObjectStore} an object store for interacting with the given protocol
 */
export declare function objectStoreForProtocol(protocol?: string): S3ObjectStore | undefined;
/**
 * Returns the default object store. Allows requesting an object store without first
 * knowing a protocol.
 *
 * @returns {S3ObjectStore} the default object store
 */
export declare function defaultObjectStore(): S3ObjectStore;
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