export declare class NotiflyAPI {
    private static readonly MAX_RETRY_COUNT_ON_TOKEN_EXPIRED;
    private static _username;
    private static _password;
    private static _cognitoIdToken;
    static initialize(): Promise<void>;
    static call(url: string, method: 'GET' | 'POST', body?: any, redirect?: RequestRedirect): Promise<any>;
    private static _call;
}
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