kongove/autotest — comment on commit a064e15dfcf10dd42a546dfb6c7fbb2daf3bdb2b
File: client/tests/kvm/control line 73
By kongove:

How about only provide users the mechanism (scripts in tools directory, they can also be called as a lib)?
User can use tools directly or use the lib in scripts ( such as control file), it's clearer to understand.