/**
 * Generator function returning PetrusTokens['accessToken'] or `null`.
 *
 * @category Redux Saga
 *
 * @example
 * ```ts
 * import { getAccessToken } from '@ackee/petrus';
 *
 * function* mySaga() {
 *     const accessToken = yield* getAccessToken();
 *
 *     console.log(accessToken);
 * }
 * ```
 */
export declare const getAccessToken: () => Generator<any, {
    token: string;
    expiration?: string | null | undefined;
} | null, unknown>;