Specify how to observe a value that is currently being read with multiple bindings.
The same as add but takes an array of
[object, event] arrays.
ObservationRecorder.addMany( [ [ obj1, "prop1" ], [ value ], [ obj2, "prop2" ] ] );
An array of
[object, event]"observable" arrays. If an "observable" array only has one item, it's assumed to be a onValue binding.