export declare class MetadataDecoratorKeys {
    static readonly PERMISSION = "metadata-key-for-permission-decorator";
}
export interface IPermissionDecorator {
    idx: number;
}
/**
 * @example
 * ```typescript
 * class MyController {
 *   @permission({ idx: 1, allowedRoles: ['admin'], deniedRoles: ['guest'] })
 *   myMethod() {
 *     // method implementation
 *   }
 * }
 * ```
 */
export declare function permission(spec: IPermissionDecorator): MethodDecorator;
export declare const getDecoratorData: (controllerPrototype: object, keyTargetDecorator: string) => import("@loopback/metadata").MetadataMap<any>;
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