how is PartialServiceConfiguration class being used?

ClientConfiguration can be created using ServiceConfiguration and there is no easy way to convert PartialServiceConfiguration to ServiceConfiguration or vice versa even though they are pretty much identical except for the absence of security. I would like know more about how we intend to use the PartialServiceConfiguration class

EDIT: saw ServiceConfigurationFactor.propagateDefaults and answered my question above.

ClientConfiguration、ServiceConfiguration、PartialServiceConfiguration、ServiceConfigurationFactor.propagateDefaults に対する issue の参照を読みます。著者は propagateDefaults が質問に答えていたと記載するよう issue を編集したため、残っている変更やドキュメント化の対象は特定されていません。