export declare const PLAN_PANE_ENTER_MS = 120;
export declare const PLAN_PANE_EXIT_MS = 100;
export type PaneAnimPhase = "enter" | "open" | "exit" | "closed";
export interface PaneAnimState {
    readonly phase: PaneAnimPhase;
    readonly progress: number;
    readonly mounted: boolean;
}
export declare function paneProgress(phase: PaneAnimPhase, ageMs: number, enterMs?: number, exitMs?: number): number;
export declare function paneMounted(phase: PaneAnimPhase): boolean;
export declare function paneSlideTop(progress: number, restTop: number, paneHeight: number): number;
export declare function paneSlideWidth(progress: number, fullWidth: number): number;
export declare function panePhaseComplete(phase: PaneAnimPhase, ageMs: number, enterMs?: number, exitMs?: number): PaneAnimPhase | null;