def query_album(self, album, artist=None, year=None, reltyp=None):
        raise NotImplementedError()
Compute the hash of the content of the file pointed to by file_handle.
dataset/ETHPy150Open YetAnotherNerd/whatlastgenre/wlg/dataprovider.py/DataProvider.query_album--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/tools/appcfg.py/_HashFromFileHandle