Added a crucial .unpickle()
Added a crucial .unpickle()


Former-commit-id: 521569ae960d405ffda8c5fb5a696de10a87ede0 [formerly 521569ae960d405ffda8c5fb5a696de10a87ede0 [formerly a3e343770796a380dc856ffeb445c871433b66ac]]
Former-commit-id: a50804c80aee5c6f180e171ca71911c202683320
Former-commit-id: 4de806159aaed3251f30dbb80df7e83922e2383d
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine