code: def remove_region(self, region):
          
          for i, r in enumerate(self._regions):
              if r is region:
                  del self._regions[i]
docs: ! @brief Removes a memory region from the map.
          @param self
          @param region The region to remove. The region to remove is matched by identity, not value,
              so this parameter must be the exact object that you wish to remove from the map.