def __init__ ( self , usb ) : self . _usb = usb self . _protocol = self . protocol_handler ( usb )
python usb device object
Constructs a FastbootCommands instance .
def __init__(self, usb):
    """Constructs a FastbootCommands instance.

    Arguments:
      usb: UsbHandle instance.
    """
    self._usb = usb
    self._protocol = self.protocol_handler(usb)