serializeBody always returns a nil error. Remove the error return value. commit-id:5e150f69
Optional metadata for debugging. Allows tying a received observation to an on-chain transaction even if the node missed the observation. Change-Id: Ie50c10c8ab7f65469555674d90645f91092fb2e3
Calling guardiand a bridge dates back to v1 and no longer makes sense. Change-Id: I27d24a5d7a64c3e37d6a5ce9c402c6248ad9c59e