fun findByID(id: DittoDocumentID): DittoPendingIDSpecificOperation
Generates a DittoPendingIDSpecificOperation with the provided document ID that can be used to find
the document at a point in time or you can chain a call to observe, observeLocal, or
subscribe if you want to get updates about the document over time.
Return
a DittoPendingIDSpecificOperation that you can chain function calls to either get the document immediately or get updates about it over time.