import type { Transaction } from '../core/Database.js';
import type { Deliver, QueryMeta } from '../core/MetaData.js';
type Part<Meta extends QueryMeta> = Promise<unknown> | ((tx: Transaction<Meta>) => unknown);
type Create<Meta extends QueryMeta, T> = (tx: Transaction<Meta>) => Generator<Part<Meta>, T>;
export interface TxGenerator<Meta extends QueryMeta, Result> {
    (tx: Transaction<Meta>): Deliver<Meta, Result>;
    [Symbol.iterator](): Generator<Part<Meta>, Result>;
}
export declare function txGenerator<Result = void, Meta extends QueryMeta = QueryMeta>(create: Create<Meta, Result>): TxGenerator<Meta, Result>;
export {};