/**
 * A class to walk through the text nodes of an element in reverse
 */
export declare class ReverseTextTreeWalker {
    currentNode: Node | null;
    private rootNode;
    /**
     * Create a new `ReverseTextTreeWalker`
     * @param node The node to start the walk from
     */
    constructor(node: Node);
    /**
     * Get the next text node in the tree
     * @returns The next text node in the tree or undefined if there are no more nodes
     */
    nextNode(): Node | null;
}
/**
 * Get the length of the last line of a contenteditable element
 * @param element The element to get the length of the last line from
 * @returns The length of the last line of the element
 */
declare const getLastLineLength: (element: HTMLElement) => number;
export default getLastLineLength;
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