def METHOD_NAME(self):
    """
    Objective: Test if we can change values using the modbus protocol.
    """
    master = modbus_tcp.TcpMaster(host=self.host, port=self.port)
    master.set_timeout(1.0)
    set_bits = [1, 0, 0, 1, 0, 0, 1, 1]
    # write 8 bits
    master.execute(
        slave=self.target_slave_id,
        function_code=cst.WRITE_MULTIPLE_COILS,
        starting_address=1,
        output_value=set_bits,
    )
    # read 8 bit
    actual_bit = master.execute(
        slave=self.target_slave_id,
        function_code=cst.READ_COILS,
        starting_address=1,
        quantity_of_x=8,
    )
    self.assertSequenceEqual(set_bits, actual_bit)