How to use the hidapi.read function in hidapi

def _read(handle, timeout):
	"""Read an incoming packet from the receiver.

	:returns: a tuple of (report_id, devnumber, data), or `None`.

	:raises NoReceiver: if the receiver is no longer available, i.e. has
	been physically removed from the machine, or the kernel driver has been
	unloaded. The handle will be closed automatically.
	"""
	try:
		# convert timeout to milliseconds, the hidapi expects it
		timeout = int(timeout * 1000)
		data = _hid.read(int(handle), _MAX_READ_SIZE, timeout)
	except Exception as reason:
		_log.error("read failed, assuming handle %r no longer available", handle)
		close(handle)
		raise NoReceiver(reason=reason)

	if data:
		assert isinstance(data, bytes), (repr(data), type(data))
		report_id = ord(data[:1])
		assert ((report_id & 0xF0 == 0) or
				(report_id == 0x10 and len(data) == _SHORT_MESSAGE_SIZE) or
				(report_id == 0x11 and len(data) == _LONG_MESSAGE_SIZE) or
				(report_id == 0x20 and len(data) == _MEDIUM_MESSAGE_SIZE)), \
				"unexpected message size: report_id %02X message %s" % (report_id, _strhex(data))
		if report_id & 0xF0 == 0x00:
# These all should be normal HID reports that shouldn't really be reported in debugging
#			if _log.isEnabledFor(_DEBUG):

def _continuous_read(handle, timeout=2000):
	while True:
		try:
			reply = _hid.read(handle, 128, timeout)
		except OSError as e:
			_error("Read failed, aborting: " + str(e), True)
			break
		assert reply is not None
		if reply:
			_print('>>', reply, True)

def _skip_incoming(handle, ihandle, notifications_hook):
	"""Read anything already in the input buffer.

	Used by request() and ping() before their write.
	"""

	while True:
		try:
			# read whatever is already in the buffer, if any
			data = _hid.read(ihandle, _MAX_READ_SIZE, 0)
		except Exception as reason:
			_log.error("read failed, assuming receiver %s no longer available", handle)
			close(handle)
			raise NoReceiver(reason=reason)

		if data:
			assert isinstance(data, bytes), (repr(data), type(data))
			report_id = ord(data[:1])
			if _log.isEnabledFor(_DEBUG):
				assert ((report_id & 0xF0 == 0) or
						(report_id == 0x10 and len(data) == _SHORT_MESSAGE_SIZE) or
						(report_id == 0x11 and len(data) == _LONG_MESSAGE_SIZE) or
						(report_id == 0x20 and len(data) == _MEDIUM_MESSAGE_SIZE)), \
						"unexpected message size: report_id %02X message %s" % (report_id, _strhex(data))
			if notifications_hook and report_id & 0xF0:
				n = make_notification(ord(data[1:2]), data[2:])