interface ParticleType {
    x: number | null;
    dx: number | null;
    dy: number | null;
    y: number | null;
    age: number | null;
    birthAge: number | null;
    path: any[] | null;
}
declare class Particle implements ParticleType {
    x: number | null;
    dx: number | null;
    dy: number | null;
    y: number | null;
    age: number | null;
    birthAge: number | null;
    path: any[] | null;
    constructor();
}
export default Particle;