Interface b2DistanceJointDef

interface b2DistanceJointDef {
    base: b2JointDef;
    dampingRatio: number;
    enableLimit: boolean;
    enableMotor: boolean;
    enableSpring: boolean;
    hertz: number;
    length: number;
    maxLength: number;
    maxMotorForce: number;
    minLength: number;
    motorSpeed: number;
    clone(): this;
    delete(): void;
    deleteLater(): this;
    isAliasOf(other: ClassHandle): boolean;
    isDeleted(): boolean;
    [key: number]: () => void;
}