Change return type for time function

[cottinisimone]

Hello @mcasper,

Sorry, i realize that the implementation i did was not so correct. The problem is that we don't want the "domain" function to not return in case the lib had communication problems with datadog. If there's an error the result should be returned anyway. Wdyt?

The alternatives for the return type are:

• return an object like TimeResult with inner fields result: T and error: Option<Error>
• return a tuple (T, Option<Error>)

Thank you in advance and sorry for the inconvenience.

[cottinisimone]

Ehi @mcasper wdyt about this?

[mcasper]

Looks great, thank you!