Use covariant return types.
Use covariant return types.

mehrtash/CTK,vovythevov/CTK,espakm/CTK,danielknorr/CTK,sankhesh/CTK,CJGoch/CTK,vovythevov/CTK,151706061/CTK,SINTEFMedtek/CTK,danielknorr/CTK,Sardge/CTK,laurennlam/CTK,ddao/CTK,pieper/CTK,AndreasFetzer/CTK,vovythevov/CTK,sankhesh/CTK,mehrtash/CTK,msmolens/CTK,ddao/CTK,commontk/CTK,espakm/CTK,Heather/CTK,jcfr/CTK,naucoin/CTK,Heather/CTK,danielknorr/CTK,jcfr/CTK,ddao/CTK,laurennlam/CTK,lassoan/CTK,AndreasFetzer/CTK,naucoin/CTK,SINTEFMedtek/CTK,fedorov/CTK,finetjul/CTK,CJGoch/CTK,ddao/CTK,AndreasFetzer/CTK,mehrtash/CTK,SINTEFMedtek/CTK,rkhlebnikov/CTK,laurennlam/CTK,fedorov/CTK,Heather/CTK,Heather/CTK,naucoin/CTK,danielknorr/CTK,151706061/CTK,vovythevov/CTK,laurennlam/CTK,rkhlebnikov/CTK,CJGoch/CTK,151706061/CTK,pieper/CTK,commontk/CTK,commontk/CTK,CJGoch/CTK,jcfr/CTK,151706061/CTK,espakm/CTK,SINTEFMedtek/CTK,fedorov/CTK,pieper/CTK,msmolens/CTK,sankhesh/CTK,finetjul/CTK,rkhlebnikov/CTK,Sardge/CTK,AndreasFetzer/CTK,commontk/CTK,Sardge/CTK,lassoan/CTK,msmolens/CTK,rkhlebnikov/CTK,lassoan/CTK,finetjul/CTK,mehrtash/CTK,SINTEFMedtek/CTK,CJGoch/CTK,jcfr/CTK,espakm/CTK,fedorov/CTK,lassoan/CTK,pieper/CTK,naucoin/CTK,finetjul/CTK,msmolens/CTK,jcfr/CTK,sankhesh/CTK,151706061/CTK,Sardge/CTK