export declare function cleanOutString(outStr: string): string;
/**
 *
 * @param columnSizes Size of each column in the table
 * @param separator character for a separator
 * @returns A separator for table lines
 */
export declare function lineSeparator(columnSizes: number[], separator: string): string;
/**
 * Replaces all special characters like \n, \r, \t, with an equivalent that can be displayed on a single line.
 * Also trims line breaks at the end of the string.
 * @param outStr
 */
export declare function cleanSpecialChars(outStr: string): string;
/**
 * Return a float as a string with at least 2 levels of precision.
 */
export declare function floatToString(value: number | null): string;