import { AnimationGenerator } from "../types";
export declare const calcDampingRatio: (stiffness?: number, damping?: number, mass?: number) => number;
export declare const calcAngularFreq: (undampedFreq: number, dampingRatio: number) => number;
export declare const createSpringGenerator: ({ stiffness, damping, mass, from, to, velocity, restSpeed, restDelta, }?: {
    stiffness?: number | undefined;
    damping?: number | undefined;
    mass?: number | undefined;
    from?: number | undefined;
    to?: number | undefined;
    velocity?: number | undefined;
    restSpeed?: number | undefined;
    restDelta?: number | undefined;
}) => AnimationGenerator;