public interface ModulePreprocessor extends ModuleProcessor, Cancelable
Module. Typically, a preprocessor prepares the module for execution in some way, such as populating module inputs or checking prerequisites.
The preprocessor may decide to cancel the module's pending execution, subject
to its own criteria. In this case, its
Cancelable.isCanceled() method will
return true, and its
Cancelable.getCancelReason() method may optionally explain
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