>>> import vyos.config
>>> c=vyos.config.Config()
>>> c.return_effective_values("system name-server")
"'1.1.1.1' '1.1.1.2'"Compare and contrast with correct output of return_values:
>>> c.return_values("system name-server")
['1.1.1.1', '1.1.1.2']>>> import vyos.config
>>> c=vyos.config.Config()
>>> c.return_effective_values("system name-server")
"'1.1.1.1' '1.1.1.2'"Compare and contrast with correct output of return_values:
>>> c.return_values("system name-server")
['1.1.1.1', '1.1.1.2']