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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def read_byte(self, i2c_addr, force=None):
 """ Read a single byte from a device. :rtype: int :param i2c_addr: i2c address :type i2c_addr: int :param force: :type force: Boolean :return: Read byte value """

        self._set_address(i2c_addr, force=force)
        msg = i2c_smbus_ioctl_data.create(
            read_write=I2C_SMBUS_READ, command=0, size=I2C_SMBUS_BYTE
        )
        ioctl(self.fd, I2C_SMBUS, msg)
        return msg.data.contents.byte