useCredentials method
Implementation
UserReference useCredentials(UserCredentials credentials) {
leave();
_signMiddleware = graphSigner(PairReturnType.from(
pub: credentials.pub,
priv: credentials.priv,
epriv: credentials.epriv,
epub: credentials.epub));
_client.graph.use(_signMiddleware!, kind: TTMiddlewareType.write);
return (isu =
UserReference.from(alias: credentials.alias, pub: credentials.pub));
}