Call compact on list of messages to dispatch
Return nil if the operation was unacknowledged
Attribute writer for write_concern on bulk operations
Return a new op object when setting write concern
Clearer specs
Merge pull request #492 from estolfo/op-write-concern

Add a write_concern attribute writer for bulk operation classes
RUBY-596 Adding in MultiCursor
RUBY-596 Adding parallel scan to readable
RUBY-596 Adding parallel scan to collection
RUBY-596 Add parallel scan operation spec
RUBY-596 Parallel scan not available before 2.6
Merge pull request #493 from mongodb/parallel-scan

RUBY-596 Parallel scan
Merge lists in bulk objects, don't append
RUBY-787 Batch classes
RUBY-787 Special bulk insert result
RUBY-787 Specs for insert portion of Bulk API