export interface SplitPaneOptions {
    min?: number;
    max?: number;
    step?: number;
    storageKey?: string;
    property?: string;
    unit?: "%" | "px";
    onResize?: (size: number) => void;
    onToggle?: (collapsed: boolean) => void;
}
export declare class SplitPaneManager {
    readonly handle: HTMLElement;
    readonly pane: HTMLElement;
    readonly root: HTMLElement;
    private readonly options;
    private readonly horizontal;
    private readonly paneAtStart;
    private readonly toggles;
    private size;
    private collapsed;
    private dragging;
    constructor(handleOrSelector: string | HTMLElement, options?: SplitPaneOptions);
    getSize(): number;
    isCollapsed(): boolean;
    setSize(size: number, persist?: boolean): void;
    collapse(persist?: boolean): void;
    expand(persist?: boolean): void;
    toggle(): void;
    destroy(): void;
    static initAll(root?: ParentNode): SplitPaneManager[];
    private onPointerDown;
    private onPointerMove;
    private onPointerUp;
    private onKeyDown;
    private onToggleClick;
    private clamp;
    private measure;
    private apply;
    private syncToggles;
    private load;
    private save;
}
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