docs: public static BiMap<Character, Character> toCharacterBiMap(
  		@NonNull BiMap<Character, ObfuscationRule<Character, Character>> rules)
  	{
  		BiMap<Character, Character> biMap = HashBiMap.create();
  		rules.keySet().stream().forEach(
  			key -> biMap.put(rules.get(key).getCharacter(), rules.get(key).getReplaceWith()));
  		return biMap;
  	}