import { CoreGroup } from '../geometry/Group';
export declare class MatDoubleSideTmpSetter {
    private _sidePropertyByMaterial;
    private _bound_setMat;
    private _bound_restoreMat;
    setCoreGroupMaterialDoubleSided(core_group: CoreGroup): void;
    restoreMaterialSideProperty(core_group: CoreGroup): void;
    private _setObjectMaterialDoubleSided;
    private _restoreObjectMaterialSide;
    private _setMaterialDoubleSided;
    private _restoreMaterialDoubleSided;
}