playback device changed.

some list has changes in row data, title, or other.

noop.

a setting has been changed.

player state is no longer valid due to a server command.

MockAPI is an autogenerated mock type for the API type.

MockCollection is an autogenerated mock type for the Collection type.

MockOptions is an autogenerated mock type for the Options type.

MockTableWidget is an autogenerated mock type for the TableWidget type.

MockUI is an autogenerated mock type for the UI type.

API defines a set of commands that should be available to commands run through the command-line interface.