use interrogation object for multiprocess
use interrogation object for multiprocess


Former-commit-id: fcb8c9bfab5a2b010afdbac62946f9db9f997e3b [formerly 3c5c0278975e2ba534d05da602c04490b5f16257]
Former-commit-id: 822e318beb9649627454ff085dd1f9b6f0add427
interrogator/corpkit,interrogator/corpkit