How to set attribute single as ARRAY OF BYTE

[dfvr1994]

The example at

eeip.py/eeip/eipclient.py

Line 1305 in c0b1428

#eeipclient.set_attribute_single(4,0x64,3,[1])

Shows the value as an array, has that been tested it when setting up an attribute requiring array of byte as input?

I have tried to set those up by something like [8,8,8,8] with no luck.