import { type LocalConfigOptions } from "@smithy/node-config-provider";
/**
 * Default region provider for STS when used as an inner client.
 * Differs from the default region resolver in that us-east-1 is the fallback instead of throwing an error.
 *
 * @internal
 */
export declare function stsRegionDefaultResolver(loaderConfig?: LocalConfigOptions): import("@smithy/types").Provider<string>;
/**
 * @internal
 */
export declare const warning: {
    silence: boolean;
};