import { InstallURLOptions } from '../install-url-options';
import { StateStore } from './interface';
export default class ClearStateStore implements StateStore {
    private stateSecret;
    private stateExpirationSeconds;
    constructor(stateSecret: string, stateExpirationSeconds?: number);
    generateStateParam(installOptions: InstallURLOptions, now: Date): Promise<string>;
    verifyStateParam(now: Date, state: string): Promise<InstallURLOptions>;
}
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