Updated docstring [skip CI]
Updated docstring [skip CI]


Former-commit-id: 29e0403a9763410aee997ad7073ad8b037b95b91 [formerly 6db3fe80c11b8c2729df852ad0d7227e9cd0dd6f]
Former-commit-id: 2d186b36724bf9c5dc74f53af49a9d90aa1f6fac
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine