code: def get(self, name, default=None, cache=False):
          
          if cache == True:
              for pane in self.cache:
                  if pane.name == name:
                      return pane
              return default
          for pane in self:
              if pane.name == name:
                  return pane
          return default
docs: Get a pane by name, possibly from the cache. Return None if not found.