Accroding to the spec when building an Observation the SenderContext should include

• name: A string that identifies the driver. It can be the name of a driver's component (e.g., "mongo", "PyMongo") or a package name (e.g., "com.mongo.Driver"). Drivers SHOULD select a name that is idiomatic for their language and ecosystem. Drivers SHOULD follow the Instrumentation Scope guidance.
• version: A string that represents internal driver version. The version formatting is not defined; drivers SHOULD apply the same formatting as the use for client.driver.version attribute of the handshake.

 
https://github.com/mongodb/specifications/blob/master/source/open-telemetry/open-telemetry.md#tracer-attributes