self._mcp2221 = mcp2221
         self._freq = frequency
 
-    # pylint: disable=no-self-use
     @staticmethod
-    def scan(self, address_list=None):
+    def scan(address_list=None):
         """Mocks an I2C scan.
         If address_list is not provided, this function returns a
         list of 3 randomly generated I2C addresses from 0x0 to 0x79.