code: def remove_from_space_size(self, removal_bytes):
          # type: (int) -> None
          '''
          Remove bytes from the volume descriptor.
  
          Parameters:
           removal_bytes - The number of bytes to remove.
          Returns:
           Nothing.
          '''
          if not self._initialized:
              raise pycdlibexception.PyCdlibInternalError('This Volume Descriptor is not yet initialized')
          # The 'removal' parameter is expected to be in bytes, but the space
          # size we track is in extents.  Round up to the next extent.
          self.space_size -= utils.ceiling_div(removal_bytes, self.log_block_sizef remove_from_space_size(self, removal_bytes):
          # type: (int) -> None
          '''
          Remove bytes from the volume descriptor.
  
          Parameters:
           removal_bytes - The number of bytes to remove.
          Returns:
           Nothing.
          '''
          if not self._initialized:
              raise pycdlibexception.PyCdlibInternalError('This Volume Descriptor is not yet initialized')
          # The 'removal' parameter is expected to be in bytes, but the space
          # size we track is in extents.  Round up to the next extent.
          self.space_size -= utils.ceiling_div(removal_bytes, self.log_block_size)
docs: Remove bytes from the volume descriptor.
  
          Parameters:
           removal_bytes - The number of bytes to remove.
          Returns:
           Nothing.