invokeHook
Invokes the hook function for this stage, if one is defined.
This method is called after the stage's process method completes. It invokes the hook function with the pipeline's hooks and the output of the stage.
The hook is invoked for both the pipeline's hooks and the hooks of all registered libraries.
Parameters
data
shared data that is passed between pipeline stages
input
the input that was processed
output
the output that was produced