Typo in DecayFunction
Typo in DecayFunction

In ``DecayFunction`` the attribute ``self._internal_name`` should be set, but there were two leading underscores -- probably a typo
Fiedzia/pyes,HackLinux/pyes,haiwen/pyes,Fiedzia/pyes,jayzeng/pyes,HackLinux/pyes,Fiedzia/pyes,mavarick/pyes,aparo/pyes,mavarick/pyes,aparo/pyes,aparo/pyes,haiwen/pyes,haiwen/pyes,mavarick/pyes,HackLinux/pyes,jayzeng/pyes,jayzeng/pyes