Improved docstring
Improved docstring


Former-commit-id: 2c9d985462ba256f0ccd51af9ff17b315e89f916 [formerly 2c9d985462ba256f0ccd51af9ff17b315e89f916 [formerly c2031798f649ae990170c690602d4f169e6cf40a]]
Former-commit-id: 272f11da419fc437db349b27eef1b395bf455608
Former-commit-id: 54543984927b5bc1fba05614f2f04d05f016279e
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine