docs: def to_bitstream(self):
          '''
          Create bitstream from properties
          '''
          # Verify that properties make sense
          self.sanitize()
  
          # Start with the TTL
          bitstream = BitArray('uint:32=%d' % self.ttl)
  
          # Add the locator count
          bitstream += BitArray('uint:8=%d' % len(self.locator_records))
  
          # Add the EID prefix mask length
          bitstream += BitArray('uint:8=%d' % self.eid_prefix.prefixlen)
  
          # Add the NMR action
          bitstream += BitArray('uint:3=%d' % self.action)
  
          # Add the authoritative flag
          bitstream += BitArray('bool=%d' % self.authoritative)
  
          # Add reserved bits
          bitstream += self._reserved1
  
          # Add the map version
          bitstream += BitArray('uint:12=%d' % self.map_version)
  
          # Add the EID prefix
          bitstream += get_bitstream_for_afi_address(self.eid_prefix)
  
          # Add the locator records
          for locator_record in self.locator_records:
              bitstream += locator_record.to_bitstream()
  
          return bitstream