Imports go.mongodb.org/mongo-driver/bson go.mongodb.org/mongo-driver/event gopkg.in/DataDog/dd-trace-go.v1/ddtrace gopkg.in/DataDog/dd-trace-go.v1/ddtrace/ext gopkg.in/DataDog/dd-trace-go.v1/ddtrace/tracer Standard library imports context fmt math strings sync