Acceptance Criteria

Implementation Requirements

• Remove the `maybePromise` wrapper and rewrite the functions that use it to directly return promises instead;
• Be sure that the promise provider is still used to return the final result
• Node's `util.promisify` can make this transition easier, however, we should prefer converting the consuming functions (in particular, executeOperation) to async/await instead

Testing Requirements

• Existing tests should all still pass

Documentation Requirements

• N/A