import type { UILayerElement, UIPlaneElement } from "../../miscellaneous/shared";
import { UISingleParameterConstraint } from "../UISingleParameterConstraint/UISingleParameterConstraint";
import type { UIHeightConstraintOptions } from "./UIHeightConstraint.Internal";
/** Fixes element height to constant value */
export declare class UIHeightConstraint extends UISingleParameterConstraint {
    readonly element: UIPlaneElement & UILayerElement;
    /** Solver constraint descriptor */
    protected readonly constraint: number;
    /** Current height value */
    private heightInternal;
    /**
     * @param element Element to constrain
     * @param options Height configuration. Defaults to element's current height.
     */
    constructor(element: UIPlaneElement & UILayerElement, options?: Partial<UIHeightConstraintOptions>);
    /** Current height in world units */
    get height(): number;
    /** Updates height */
    set height(value: number);
}