Possible extension: normal token write
Instead of requiring an NTA-token, a normal token
ABC could be used for a write update definition, to send a message whenever the
setABC method is called, containing the new value of
ABC after applying any mapping definitions.
Implementation-wise, this is either a new set of methods, or is transformed to an additional NTA-token with a dependency to
ABC (and the identity-function as definition) and uses the existing generation logic.