Return row id given to the knowledge record

[uezo]

Current spec:

# Add
vss.add("The difference between eel and conger eel is that eel is more expensive.")
# Get
vss.get(1)

But I want to handle row id and use it like below:

# Add
id = vss.add("The difference between eel and conger eel is that eel is more expensive.")
# Get
vss.get(id)