import { ImageOptions, Label } from "../types";
/**
 * Handles the generation of unique filenames based on a proposed filename and an array of existing filenames.
 *
 * If the proposed filename is unique, it is added to the filenames array and returned as-is.
 * If the proposed filename is not unique, the function will check if it already ends with a "-n" pattern.
 * If it does, the function will increment the number until a unique filename is found.
 * If it doesn't, the function will start with "-2" and increment the number until a unique filename is found.
 */
export declare function handleFileNames(imageOptions: ImageOptions, filenames: string[]): Label;
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