code: def section(self, title=None):
          
          for section in self.sections():
              if section.title.lower() == title.lower():
                  return section
          raise NotFound('Invalid library section: %s' % title)
docs: Returns the :class:`~plexapi.library.LibrarySection` that matches the specified title.
  
              Parameters:
                  title (str): Title of the section to return.