AIP-134 provides guidance against standard update methods having side effects: https://google.aip.dev/134#side-effects.
Should this guidance also apply to AIP-133 for standard create methods? I would argue it should and that creating an entity should not update other entities or otherwise have side effects. The one carveout might be any necessary relational updates to the created entity's parent.
Was this intentionally left out or should there be some guidance for or against or neutral with regard to side effects in AIP-133?