/**
 * Finds the number at the end of a filename and increases it
 * If there is no number yet, concatenates '1' to a string
 *
 * E.g.
 *
 * - `hello-world` becomes `hello-world1`
 * - `hello36` becomes `hello37`
 */
export declare const oneUp: (filename: string) => string;
export declare const getFirstAvailableFilename: (absoluteFilePath: string) => string;
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