Should metrics-sdk be included in general sdk

[xuan-cao-swi]

Not sure if there is a strict rule in opentelemetry-specification, but I saw some language put metrics-sdk and metrics-api under one general sdk (also include logs). Should we do the same once the metrics sdk is stable?

Languages that include metrics-sdk under general sdk:

Python: https://github.com/open-telemetry/opentelemetry-python/tree/main/opentelemetry-sdk/src/opentelemetry/sdk
Java: https://github.com/open-telemetry/opentelemetry-java/tree/main/sdk
Swift: https://github.com/open-telemetry/opentelemetry-swift/tree/main/Sources/OpenTelemetrySdk

Languages that don't include metrics-sdk under general sdk:

JavaScript: https://github.com/open-telemetry/opentelemetry-js/tree/main/packages/sdk-metrics#installation (but javascript put metrics api under general api)
Go: https://github.com/open-telemetry/opentelemetry-go/tree/main/metric

[xuan-cao-swi]

As discussion in May 28 SIG meeting, the road path is once these sdk/api are stable, they will be included in general sdk (i.e. trace sdk)