docs: def persistent_write(self, address, byte, refresh_config=False):
          '''
          Write a single byte to an address in persistent memory.
  
          Parameters
          ----------
          address : int
              Address in persistent memory (e.g., EEPROM).
          byte : int
              Value to write to address.
          refresh_config : bool, optional
              Is ``True``, :meth:`load_config()` is called afterward to refresh
              the configuration settings.
          '''
          self._persistent_write(address, byte)
          if refresh_config:
              self.load_config(False)