In the resources/cli.py module there is a bug which causes the library to do a POST instead of GET for the command vserver export-policy check-access
The _parse_command(command) function looks for show or status in the action_word in order to change the request type from POST to GET in the if statement and not forr check-access.
The reference code:
if "show" in action_word or "status" in action_word: # Need to add check-access here probably
verb = "get"
if action_word.startswith("show-"):
everything_else.append("-".join(action_word.split("-")[1:]))
elif action_word != "show":
everything_else.append(action_word)