+|runtime_token|string|A v2 token to be passed into the container itself, used to access Keep-backed mounts, etc.|Not returned in API responses. Reset to null when state is "Complete" or "Cancelled".|
+|gateway_address|string|Address (host:port) of gateway server.|Internal use only.|
+|interactive_session_started|boolean|Indicates whether @arvados-client shell@ has been used to run commands in the container, which may have altered the container's behavior and output.||
+|output_storage_classes|array of strings|The storage classes that will be used for the log and output collections of this container||
+|output_properties|hash|User metadata properties to set on the output collection.|
+|cost|number|Estimated cost of the cloud VM used to run the container.|0 if not available.|
+|subrequests_cost|number|Total estimated cumulative cost of container requests submitted by this container.|0 if not available.|