export declare const assertIsColor: (color: string) => void; /** * Assert the value is not null or empty * @param attributeName name of attribute for logging purpose * @param attributevalue value of attribute */ export declare const assertNotNullNorEmpty: (attributeName: string, attributeValue: string) => void; /** * Wrap a promise call to add common functionnalities * @param promise promise to call */ export type PromiseSupplier = () => Promise; export declare const wrapPromise: (promiseSupplier: PromiseSupplier, count?: number) => Promise;