Read Actions collection.

Actions collection with items of the following Task types:

• discoverThreadNetworksTask TODO
• addThreadDeviceTask
• getNetworkDiagnosticTask
• resetNetworkDiagCounterTask
• getEnergyScanTask
• updateDeviceCollectionTask

The items contain all the attributes as given by a client in a POST request (values are not changed, except for timeout which counts down). The items contain at least two additional server-added attributes (id and status); while the id must not change once assigned, the other server-added attributes may change according to the Task state.

Failing to parse the query parameter(s) leads to a 400 Bad Request Error.