/**
 * Helper functions that do not belong to any category in particular.
 *
 * @module
 */
/**
 * Helper function to print the differences between two strings. Similar to the `diff` Unix program.
 */
export declare function diff(string1: string, string2: string): void;
/**
 * Helper function to print out an error message and then exit the program.
 *
 * All of the arguments will be passed to the `console.error` function.
 */
export declare function fatalError(...args: readonly unknown[]): never;
/**
 * Helper function to get the command-line arguments passed to the program/script.
 *
 * This is an alias for: `process.argv.slice(2)`
 */
export declare function getArgs(): readonly string[];
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