Returns an arbitrary generator function, or undefined if generator syntax is unsupported. If both generator syntax and concise method syntax are supported, the generator function returned will have a "concise" property containing a concise generator method.
acquired package info from repodata DB: repodata/f1f85c23079e7764ad00378a9fc5d660b89a03657290e75426caf7be5b7da462-primary.sqlite.bz2