code: def _fast_memory_load_bytes(self, addr, length):
          
  
          try:
              return self.project.loader.memory.load(addr, length)
          except KeyError:
              return None
docs: Perform a fast memory loading of some data.
  
          :param int addr: Address to read from.
          :param int length: Size of the string to load.
          :return:         A string or None if the address does not exist.
          :rtype:          bytes or None