Added doc for the "module" attribute on the class descriptor objects; omission repoorted by Glyn Webster <glyn@ninz.org.nz>.
Added doc for the "module" attribute on the class descriptor objects;
omission repoorted by Glyn Webster <glyn@ninz.org.nz>.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator