parameters: (self)
docstring: This property must be overridden by subclasses of `AsyncRunner`.  It
          must return ``True`` if the executor is running, ``False`` if not.
docstring_summary: This property must be overridden by subclasses of `AsyncRunner`.  It
          must return ``True`` if the executor is running, ``False`` if not.
docstring_tokens: This property must be overridden by subclasses of AsyncRunner . It must return True if the executor is running False if not .
function: def running(self):
          """
          This property must be overridden by subclasses of `AsyncRunner`.  It
          must return ``True`` if the executor is running, ``False`` if not.
          """
          raise NotImplementedError
function_tokens: def running ( self ) : raise NotImplementedError