/** Possible states for a ripple element. */
export declare enum RippleState {
    /** Ripple is still fading in */
    FADING_IN = 0,
    /** Ripple faded in and completely visible  */
    VISIBLE = 1,
    /** Ripple is fading out  */
    FADING_OUT = 2,
    /** Ripple faded out and completely hidden  */
    HIDDEN = 3
}