import { LexicalEditor } from "lexical";
import { OverflowNode } from "@lexical/overflow";
import { MaybeAccessor } from "../utils";
type OptionalProps = {
    remainingCharacters?: (characters: number) => void;
    strlen?: (input: string) => number;
};
export declare function useCharacterLimit(editor: LexicalEditor, maxCharacters: MaybeAccessor<number>, optional?: MaybeAccessor<OptionalProps>): void;
export declare function $mergePrevious(overflowNode: OverflowNode): void;
export {};