parameters: (self)
return_statement: return bool( len(self) )
docstring: @rtype:  bool
          @return: C{False} if the container is empty.
function: def __bool__(self):
          """
          @rtype:  bool
          @return: C{False} if the container is empty.
          """
          return bool( len(self) )
function_tokens: def __bool__ ( self ) : return bool ( len ( self ) )