import { JavaClasses } from "./JavaTypes.js";
/**
 * Helps inserting lines.
 *
 */
export default class LineInserter {
    newLine: string;
    /**
     * Sets the new line.
     *
     * @param newLine - the new line to use.
     */
    setNewLine(newLine: string): void;
    /**
     *
     * @param contents - The contents where lines will be inserted.
     * @param linesToInsert - Maps line numbers to strings to insert.
     *
     * @returns the contents with the lines inserted.
     */
    add(contents: string | JavaClasses.File, linesToInsert: Record<number, string | string[]>): string;
}
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