import { AppError, Constructor } from '@dandi/common';
import { Logger } from '@dandi/core';
import { DbTransactionClient } from '@dandi/data';
import { ModelBuilder, ModelBuilderOptions } from '@dandi/model-builder';
import { PgDbPoolClient } from './pg.db.pool.client';
import { PgDbQueryableBase } from './pg.db.queryable';
export declare class TransactionRollbackError extends AppError {
    readonly originalError?: Error;
    constructor(rollbackError: Error, originalError?: Error);
}
export declare class PgDbTransactionClient extends PgDbQueryableBase<PgDbPoolClient> implements DbTransactionClient {
    private logger;
    private state;
    constructor(client: PgDbPoolClient, modelValidator: ModelBuilder, logger: Logger, modelBuilderOptions?: ModelBuilderOptions);
    query(cmd: string, ...args: any[]): Promise<any[]>;
    queryModel<T>(model: Constructor<T>, cmd: string, ...args: any[]): Promise<T[]>;
    rollback(err?: Error): Promise<void>;
    commit(): Promise<void>;
    dispose(reason: string): Promise<void>;
}