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If a user supplies a ProcessorWrapper, it will be applied immediately as processors are added to the topology, whether via the PAPI or the DSL. A user can decide whether or not to add a layer wrapping the passed-in process supplier , but cannot return null or a different/new ProcessorSupplier entirely. It is expected that the wrapper will be a pure wrapping layer and delegate any calls to the underlying processor for full functionality.or even opt to replace the provided processor supplier entirely without wrapping it. 

Compatibility, Deprecation, and Migration Plan

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