subparser.addArgument("number").help("Specify the phone number, for which to set the trust.").required(true);
var mutTrust = subparser.addMutuallyExclusiveGroup();
mutTrust.addArgument("-a", "--trust-all-known-keys")
subparser.addArgument("number").help("Specify the phone number, for which to set the trust.").required(true);
var mutTrust = subparser.addMutuallyExclusiveGroup();
mutTrust.addArgument("-a", "--trust-all-known-keys")