export declare class OverflowGuardElement extends HTMLElement {
    static get observedAttributes(): string[];
    private rawPrimaryElement;
    private measurementElement;
    private measurementBoxElement;
    private sourceMutationObserver;
    private hostMutationObserver;
    private resizeObserver;
    private mutatingInternally;
    private hasConnected;
    private lastDispatchedState;
    private measuredOverflowAxis;
    private fallbackContentMutations;
    constructor();
    get primaryElement(): HTMLElement;
    get overflowAxis(): NonNullable<"both" | "horizontal" | "vertical" | "none" | undefined>;
    get isOverflowing(): boolean;
    get checkOnly(): "horizontal" | "vertical" | null;
    get fallbackClass(): string;
    set fallbackClass(value: string);
    connectedCallback(): void;
    disconnectedCallback(): void;
    attributeChangedCallback(name: string, oldValue: string | null, newValue: string | null): void;
    refresh(): void;
    private rebuildMeasurementElementPreservingFallback;
    private collectAssignedElements;
    private copyPrimaryToMeasurementElement;
    private initMutationObserver;
    private initHostObserver;
    private handleSourceMutations;
    private handleHostMutations;
    private initResizeObserver;
    private scheduleOverflowCheck;
    private checkOverflowAndApply;
    private measureOverflowAxis;
    private applyFallbackChange;
    private startMutatingInternally;
    private endMutatingInternally;
    private reflectState;
    private doOrUndoFallbackContentMutations;
    private set fallbackChangesApplied(value);
    private get fallbackChangesApplied();
}
declare global {
    interface HTMLElementTagNameMap {
        "overflow-guard": OverflowGuardElement;
    }
}