code: def parent_suite(self):
          
          if self.context and self.context.parent_suite_path:
              return Suite.load(self.context.parent_suite_path)
          return None
docs: Get the current parent suite.
  
          A parent suite exists when a context within a suite is active. That is,
          during execution of a tool within a suite, or after a user has entered
          an interactive shell in a suite context, for example via the command-
          line syntax 'tool +i', where 'tool' is an alias in a suite.
  
          Returns:
              `Suite` object, or None if there is no current parent suite.