export interface State<T extends string> {
    epic_call?: (state: State<T>) => Promise<Partial<State<T>>>;
    node_type: T;
}
export declare type Machine<S extends State<T>, T extends string> = (s0: any, s1: S) => Promise<S>;
export declare type Transition<S extends State<T>, T extends string> = [S, S, (state: S) => S];
export declare type Graph<T extends string> = Array<Transition<State<T>, T>>;