/** Shrink-to-fit. Only explicit fixed-height (list placeholders start this way). */
export declare const textElementLocksSize: (el: {
    fixedHeight?: boolean;
    vertical?: boolean;
}) => boolean;
/** Shape text defaults to a locked box; `fixedHeight: false` is auto-height. */
export declare const shapeTextLocksSize: (text?: {
    fixedHeight?: boolean;
} | null) => boolean;
export declare const elementLocksTextBox: (el: {
    type?: string;
    fixedHeight?: boolean;
    vertical?: boolean;
    text?: {
        fixedHeight?: boolean;
    } | null;
}) => boolean;