in processor.py [0:0]
def match(self, part: ProcessorPart) -> bool:
if any(p.match(part) for p in self._processor_list):
return True
elif self._is_passthrough:
# no processor will process the part but we still need to pass it
# through. Return False means the part does not enter the parallel
# processor and is passed through as is.
return False
else:
# no processor will process the part and we want to drop it. Return
# True will ensure the part enters the parallel processor that will drop
# it.
return True