import { Line3, Plane, Ray, Vector3 } from "three";
export declare class PlaneExt extends Plane {
    constructor(normal?: Vector3, constant?: number | Vector3);
    parseConstantFromPoint(constant: Vector3): void;
    intersectLine(line: Line3, optionalTarget?: Vector3, extendLine?: boolean): Vector3;
    intersectRay(ray: Ray, optionalTarget?: Vector3, extendLine?: boolean): Vector3;
}
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