Send data as json using custom encoder
Fix assignment of manager on retrieved feeds
Encode expected result manually.

To get the same result as our encoder will get.
Add cosm-pthong/__version__ to User-Agent header
Handle requesting datastreams of created Feed

One that hasn't been fetched and therefore doesn't have its id set.
datastreams resource takes a list of datastreams
Handle listing datastreams when none exist
Return new dict instance from __getstate__

We don't want mutation of the returned state to affect the object
Create Triggers
Retrieve trigger by id