declare module "anydb-sql-migrations" {
    import Promise = require('bluebird');
    import { Column, Table, Transaction, AnydbSql } from 'anydb-sql';
    export interface Migration {
        version: string;
    }
    export interface MigrationsTable extends Table<Migration> {
        version: Column<string>;
    }
    export interface MigFn {
        (tx: Transaction): Promise<any>;
    }
    export interface MigrationTask {
        up: MigFn;
        down: MigFn;
        name: string;
    }
    export interface MigrationOptions {
        check?: boolean;
        execute?: boolean;
        rollback?: boolean;
        drop?: boolean;
    }
    export function create(db: AnydbSql, tasks: string | MigrationTask[]): {
        run: () => Promise<any>;
        execMigrations: (migrationOptions: MigrationOptions) => Promise<void>;
        check: (f: (items: MigrationTask[]) => any) => Promise<any>;
        migrate: () => Promise<any>;
        undoLast: () => Promise<any>;
        drop: () => Promise<any>;
    };
}