export declare class DatabaseBlockedError extends Error {
    constructor();
}
export declare class DatabaseConnectionError extends Error {
    constructor();
}
export declare class UnknownVersionUpgradeError extends Error {
    constructor();
}
export declare class TransactionAbortedError extends Error {
    constructor();
}
export declare class UpgradeTransactionClosedError extends Error {
    constructor();
}
export declare class DOMExceptionError extends Error {
    constructor(ex: DOMException);
}