The CollectionOptions struct is a mixture of some user-provided options that are serialized and persisted directly to the durable catalog (i.e. capped) and others that are user-provided but and dispatched into other actions (i.e. timeseries), but never directly serialized.

This multipurpose struct accepts a ParseKind flag that validates options based on whether the struct is being used for storage or user options.

It would make sense to have one structure for holding all user-provided options and another that is used only to serialize/deserialize to the catalog.