def wait_for_edge(self, pin, edge):
        """Wait for an edge.   Pin should be type IN.  Edge must be RISING, 
        FALLING or BOTH.
        """
        self.bbio_gpio.wait_for_edge(pin, self._edge_mapping[edge])
def wait_for_edge(self, pin, edge):
        """Wait for an edge.   Pin should be type IN.  Edge must be RISING, 
        FALLING or BOTH.
        """
        self.bbio_gpio.wait_for_edge(pin, self._edge_mapping[edge])
def wait_for_edge ( self , pin , edge ) : self . bbio_gpio . wait_for_edge ( pin , self . _edge_mapping [ edge ] )
Wait for an edge.   Pin should be type IN.  Edge must be RISING, 
        FALLING or BOTH.
Wait for an edge . Pin should be type IN . Edge must be RISING FALLING or BOTH .