public interface IPostProcessor
IPostProcessor is a service that is called after execution of operation which can be used to postProcess or executePostProcessors the results of the operation.
The post processor implementation can also add data/prune/filter the results.
Post-process allow user to verify/control the results of an operation before passing the results to the end user.
This method can also include the logic to filter/prune/add to the results of the operation.
executionContext - provides details regarding operation and argument.