getInputStream: Never return null. Exception in case of missing binary.

markAsUnused: Remove the "do not block" advice.

removeValuesUnusedLongerThan: Remove the "do not block" advice.

getMimeType/getText/getExtractedText: Unclear what to do in case of missing Binary. Return null or throw error?

storeExtractedText: unclear in case of missing binary. Throw error or ignore?