ENV var(s) to retrieve the values of
obj containing specified vars and their values
Set environment variables as specified. This will completely override the ENV vars and there are no checks in place for the validity of the new values specified.
comma separated list of vars and their values
vars param is a file path to the vars list
obj containing current env values if successful
Get the values of desired ENV vars. You can specify a comma separated list or an array. Defaults to retrieving values of all possible vars.