The SpecificCompiler produces a getSchema function, which looks like it
could be static but isn't. Is there a good reason for this?
I bring this up because when writing to a data file, you have to provide a
schema to the DataFileWriter.create call, and using something like
MyGeneratedClass.getSchema() seems like the natural way to do this
(especially if you haven't created any instances of MyGeneratedClass yet).
Is there a good way to get the Schema object without creating an instance
or parsing the schema yourself?