import CameraBase from "../display/core/CameraBase";
export declare const gyrateInertiaSystem: {
    add: ((item: CameraBase<import("three").PerspectiveCamera>, initData?: {
        factor: number;
        movementX: number;
        movementY: number;
    } | undefined) => false | import("@lincode/promiselikes").Cancellable) | ((item: CameraBase<import("three").PerspectiveCamera>, initData?: {
        factor: number;
        movementX: number;
        movementY: number;
    } | undefined) => boolean);
    delete: ((item: CameraBase<import("three").PerspectiveCamera>) => false | import("@lincode/promiselikes").Cancellable | undefined) | ((item: CameraBase<import("three").PerspectiveCamera>) => boolean);
};