import { Logger } from '../../logger';
import { IDatabase, IDatabaseTransaction } from '../../storage';
import { Database, Migration, MigrationContext } from '../migration';
import { DecryptedAccountValue as NewDecryptedAccountValue } from './000-encrypted-wallet-template/new/accountValue';
import { DecryptedAccountValue as OldDecryptedAccountValue } from './000-encrypted-wallet-template/old/accountValue';
export declare class Migration000 extends Migration {
    path: string;
    database: Database;
    prepare(context: MigrationContext): IDatabase;
    forward(context: MigrationContext, db: IDatabase, tx: IDatabaseTransaction | undefined, logger: Logger, dryRun: boolean, walletPassphrase: string | undefined): Promise<void>;
    accountForward(oldValue: OldDecryptedAccountValue): NewDecryptedAccountValue;
    /**
     * Writing a backwards migration is optional but suggested
     */
    backward(context: MigrationContext, db: IDatabase, tx: IDatabaseTransaction | undefined, logger: Logger, dryRun: boolean, walletPassphrase: string | undefined): Promise<void>;
    accountBackward(newValue: NewDecryptedAccountValue): OldDecryptedAccountValue;
}
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