Possible storage client interface changes

[Alan-Cha]

We continue to extend the interface with more and more functions to retrieve and save data based on different keys.

Should we consider only having a single method in the interface, generic retrieve and send data methods based on an arbitrary key?

Then, we can create a wrapper for the interface that can utilize the generic retrieve and send data methods for all the different keys.

This may simplify the design of the interface and make it easier to implement the method for other databases. However, we do not know realistically how often users will implement the interface for other databases and whether or not this generic function makes sense for those other databases.