Workflow API - function to get the state name from the state id

I've been developing a module that builds on the great functionality of the Workflow module. I have a very minor request, I spent some time scoping the Workflow functions on DrupalContrib.org and eventually realized there is no function to get the name of a state based on it's state id.

I looked in the code and the workflow module rarely needs such a function and just queries the db:

db_result(db_query('SELECT state FROM {workflow_states} WHERE sid = %d', $sid));

However, for other modules to work along with the Workflow module it would be appreciated to include such a function.

Thanks for the great module!