code: def append(self, mode="a", encoding=Constants.default_codec, errors=Constants.codec_error):
          
  
          if foundations.strings.is_website(self.__path):
              raise foundations.exceptions.UrlWriteError(
                  "!> {0} | '{1}' url is not writable!".format(self.__class__.__name__, self.__path))
  
          if foundations.common.path_exists(self.__path):
              if not is_writable(self.__path):
                  raise foundations.exceptions.FileWriteError(
                      "!> {0} | '{1}' file is not writable!".format(self.__class__.__name__, self.__path))
  
          with codecs.open(self.__path, mode, encoding, errors) as file:
              LOGGER.debug("> Appending to '{0}' file content.".format(self.__path))
              for line in self.__content:
                  file.write(line)
              return True
          return False
docs: Appends content to defined file.
  
          :param mode: File write mode.
          :type mode: unicode
          :param encoding: File encoding codec.
          :type encoding: unicode
          :param errors: File encoding errors handling.
          :type errors: unicode
          :return: Method success.
          :rtype: bool