code: def space(self, newlines=1):
          
          space = Space()
          for line in range(newlines):
              space.add_line('\n')
          self._container.structure.insert(self._idx, space)
          self._idx += 1
          return self
docs: Creates a vertical space of newlines
  
          Args:
              newlines (int): number of empty lines
  
          Returns:
              self for chaining