import type { AttributedTokenIdentity, AwsSdkTokenFeatures } from "@aws-sdk/types";
/**
 * @internal
 *
 * @returns the token with source feature attribution.
 */
export declare function setTokenFeature<F extends keyof AwsSdkTokenFeatures>(token: AttributedTokenIdentity, feature: F, value: AwsSdkTokenFeatures[F]): AttributedTokenIdentity;