import { BaseStep } from './BaseStep';
import { Variable } from '../Variable';
import { Label } from '../Label';
import { MatchStep } from './MatchStep';
import { VarLabels } from './types';
export declare class RootStep extends BaseStep {
    constructor();
    match(variable: Variable): MatchStep;
    match(...Labels: Label[]): MatchStep;
    match(...varLabels: VarLabels): MatchStep;
    toString(): string;
}