/**
 * Adds additional description lines, leaving a blank line between paragraphs.
 */
export declare function joinLines(dest: string, src: string): string;
/***
 * Prefix each line of a string with `---` and an optional indent.
 */
export declare function toLuaComment(text: string, indent?: string): string;
/**
 * Join strings after trimming any final whitespace and discarding any empty
 * entries.
 */
export declare function joinNonEmpty(text: (string | null)[], separator: string): string;
/**
 * Remove trailing whitespace from each line in a string.
 */
export declare function trimTrailingWhitespace(input: string): string;