Memo

• AccountDetails should accept RoutingRelation as enum (Should deserialize)
  • Now it fails with Internal Server Error, which is not good.
• Is three_nodes.rs correct? or not.
  • Seems that it makes the test process live forever even if the tests failed.
• put_accounts_username resets settings if some fields are not given. Is this desired behavior?
• balance returns String, which looks a bit weird.
• Is it worth enforcing expect instead of unwrap?