To obtain a descriptor for a particular property of an object, a client can send the object's grip's actor a request of the form:
{ "to":<i>gripActor</i>, "type":"property" , "name":<i>name</i> }
to which the grip actor replies:
{ "from":<i>gripActor</i>, "descriptor":<i>descriptor</i> }
where <i>descriptor</i> is a descriptor for the given own propertyof the object named <i>name</i>, or <tt>null</tt> if there is the object has no such own property on the object.
<i>TODO: assign to value property</i>