(self, flow)
A request has returned in some way - if this is the one we're
           servicing, go to the next flow.
A request has returned in some way - if this is the one we're
           servicing, go to the next flow.
A request has returned in some way - if this is the one we re servicing go to the next flow .
def clear(self, flow):
        """
           A request has returned in some way - if this is the one we're
           servicing, go to the next flow.
        """
        if flow is self.current:
            self.current = None
def clear ( self , flow ) : if flow is self . current : self . current = None