import { BinderStore } from './binder';
import { Artifacts } from './steps/BaseStep';
import { Column } from './database';
import { BuilderData } from './builder';
import { IStatementGiver } from './models';
export declare abstract class ItemInfo implements IStatementGiver {
    readonly alias?: string | undefined;
    private readonly unique;
    protected constructor(alias?: string | undefined);
    abstract getColumns(): Column[];
    abstract getStmt(data: BuilderData, artifacts: Artifacts, binderStore: BinderStore): string;
}