import { AuthorizationContext, AuthorizationDecision, AuthorizationMetadata } from '@loopback/authorization';
/**
 * Checks if the requesting user has one of the allowed roles.
 * @param authorizationContext - The context, containing the user information.
 * @param metadata - The metadata, provided in the @authorize-decorator. Contains allowed roles.
 * @returns The promise of a decision (if the request is denied or approved).
 */
export declare function roleAuthorization(authorizationContext: AuthorizationContext, metadata: AuthorizationMetadata): Promise<AuthorizationDecision>;