/**
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [https://neo4j.com]
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
export type FSMTransition<S extends string = string, R extends unknown = unknown> = {
    nextState?: S;
    result?: R;
};
export type FSMState<S extends string = string, E extends string = string> = {
    name: S;
    events: Record<E, (input: unknown) => FSMTransition<S, unknown>>;
};
export declare class FSM<S extends string = string, E extends string = string> {
    private current;
    private readonly states;
    constructor(...states: FSMState<S, E>[]);
    onEvent<R>(event: E, input: unknown): R;
    private transition;
}