export declare function isValidSyllable(syl: string): boolean;
export declare function isUnofficial(sylOrWord: string): boolean;
/**
 * Gets the next syllable of the given text.
 * All invalid characters are ignored.
 * @param text Text to get the next syllable from
 * @returns [syllable, text, isValidSyllable, hasSeparator, hasStop, hasColon]
 */
export declare function nextSyllable(text: string): [string, string, boolean, boolean, boolean, boolean];