code: def memory_read8(self, addr, num_bytes, zone=None):
          
          return self.memory_read(addr, num_bytes, zone=zone, nbits=8)
docs: Reads memory from the target system in units of bytes.
  
          Args:
            self (JLink): the ``JLink`` instance
            addr (int): start address to read from
            num_bytes (int): number of bytes to read
            zone (str): memory zone to read from
  
          Returns:
            List of bytes read from the target system.
  
          Raises:
            JLinkException: if memory could not be read.