import StateMachineVisitor from "./AbstractVisitor";
import { SMVisitor, IState, IStateMachine } from "./types";
export declare class StateMachinePrettyPrinter extends StateMachineVisitor implements SMVisitor {
    private indentStep;
    indentation: number;
    constructor(indentStep?: number);
    enterStateMachine(stateMachine: IStateMachine): void;
    exitStateMachine(stateMachine: IStateMachine): void;
    enterState(state: IState): void;
    exitState(state: IState): void;
    indent(): void;
    dedent(): void;
    spaces(): string;
}