async def _report_firmware(self, sysex_data):
        """
        This is a private message handler method.
        This method handles the sysex 'report firmware' command sent by
        Firmata (0x79).
        It assembles the firmware version by concatenating the major and
         minor version number components and
        the firmware identifier into a string.
        e.g. "2.3 StandardFirmata.ino"

        :param sysex_data: Sysex data sent from Firmata

        :returns: None
        """
        # first byte after command is major number
        major = sysex_data[1]
        version_string = str(major)

        # next byte is minor number
        minor = sysex_data[2]

        # append a dot to major number
        version_string += '.'

        # append minor number
        version_string += str(minor)
        # add a space after the major and minor numbers
        version_string += ' '

        # slice the identifier - from the first byte after the minor
        #  number up until, but not including the END_SYSEX byte

        name = sysex_data[3:-1]
        firmware_name_iterator = iter(name)

        # convert each element from two 7-bit bytes into characters, then add each
        # character to the version string
        for e in firmware_name_iterator:
            version_string += chr(e + (next(firmware_name_iterator) << 7))

        # store the value
        self.query_reply_data[PrivateConstants.REPORT_FIRMWARE] = version_string