Error in get_mode function

Testing generic methods

AT startup...
Success!
Soft-Reset...
Success!
Another AT startup...
Success!

Testing WIFI methods

Testing get_mode/set_mode of value 'Station'(1)...
Traceback (most recent call last):
File "main.py", line 35, in
File "esp8266uart.py", line 284, in get_mode
TypeError: function does not take keyword arguments