The required name of a response to that method call.
A pointer into the arguments of the response selected via the name and resultOf properties.
This is a JSON Pointer RFC 6901, except it also
allows the use of * to map through an array.
The method call id of a previous method call in the current request.
To allow clients to make more efficient use of the network and avoid round trips, an argument to one method can be taken from the result of a previous method call in the same request.