def find_characteristic(self, uuid):
        """Return the first child characteristic found that has the specified
        UUID.  Will return None if no characteristic that matches is found.
        """
        for char in self.list_characteristics():
            if char.uuid == uuid:
                return char
        return None
def find_characteristic(self, uuid):
        """Return the first child characteristic found that has the specified
        UUID.  Will return None if no characteristic that matches is found.
        """
        for char in self.list_characteristics():
            if char.uuid == uuid:
                return char
        return None
def find_characteristic ( self , uuid ) : for char in self . list_characteristics ( ) : if char . uuid == uuid : return char return None
Return the first child characteristic found that has the specified
        UUID.  Will return None if no characteristic that matches is found.
Return the first child characteristic found that has the specified UUID . Will return None if no characteristic that matches is found .