/** The edge of its trigger an anchored card sits against: above or below it, or beside
 *  it at the trigger's leading (`start`) or trailing (`end`) side in the layout direction. */
export type OverlaySide = "above" | "below" | "start" | "end";
/** The two vertical sides a card can be fitted to. */
export type OverlayVerticalSide = "above" | "below";
/** The two sides a card can sit beside its trigger, logical in the layout direction. */
export type OverlayBesideSide = "start" | "end";
/**
 * Fit an anchored card inside its host's visible vertical band.
 *
 * Above or below: the card goes on `currentSide` (the preferred side when it first
 * opens) while it fits there, flips to the opposite side when that one has more room,
 * and is capped to the larger band. It never falls back to beside. Beside (`beside`
 * names the side placeOverlay resolved): the card is top-aligned with its trigger
 * (centered on it with `centered`) and slid inside the band, and the side reported is
 * that beside side.
 */
export declare function fitOverlayHeight({ triggerTop, triggerHeight, outletHeight, visibleTop, visibleBottom, desiredHeight, currentSide, gap, beside, centered, }: {
    triggerTop: number;
    triggerHeight: number;
    outletHeight: number;
    visibleTop?: number;
    visibleBottom?: number;
    desiredHeight: number | null;
    currentSide?: OverlayVerticalSide;
    gap: number;
    beside?: OverlayBesideSide | null;
    /** Beside the trigger: center the card on the trigger's height instead of its top. */
    centered?: boolean;
}): {
    side: OverlaySide;
    top?: number;
    bottom?: number;
    maxHeight: number;
};
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