import { World } from "./world";
import { Component } from "./component";
export declare type Entity = number;
export declare class EntityModifier<C extends string> {
    private readonly world;
    readonly entity: Entity;
    constructor(world: World<C>, entity: Entity);
    withComponent<A extends Component>(name: C, component: A): EntityModifier<C>;
    removeComponent<A extends Component>(name: C): EntityModifier<C>;
    delete(): void;
}