use knitr:::opts_chunk_attr when available
use knitr:::opts_chunk_attr when available

brsimioni/rstudio,pssguy/rstudio,john-r-mcpherson/rstudio,jar1karp/rstudio,tbarrongh/rstudio,vbelakov/rstudio,maligulzar/Rstudio-instrumented,githubfun/rstudio,tbarrongh/rstudio,suribes/rstudio,thklaus/rstudio,nvoron23/rstudio,thklaus/rstudio,jar1karp/rstudio,brsimioni/rstudio,thklaus/rstudio,john-r-mcpherson/rstudio,JanMarvin/rstudio,githubfun/rstudio,thklaus/rstudio,piersharding/rstudio,jrnold/rstudio,jar1karp/rstudio,jrnold/rstudio,suribes/rstudio,sfloresm/rstudio,jar1karp/rstudio,maligulzar/Rstudio-instrumented,nvoron23/rstudio,tbarrongh/rstudio,tbarrongh/rstudio,JanMarvin/rstudio,piersharding/rstudio,githubfun/rstudio,tbarrongh/rstudio,edrogers/rstudio,john-r-mcpherson/rstudio,maligulzar/Rstudio-instrumented,more1/rstudio,sfloresm/rstudio,thklaus/rstudio,jrnold/rstudio,edrogers/rstudio,jzhu8803/rstudio,brsimioni/rstudio,JanMarvin/rstudio,piersharding/rstudio,sfloresm/rstudio,tbarrongh/rstudio,pssguy/rstudio,john-r-mcpherson/rstudio,jar1karp/rstudio,sfloresm/rstudio,sfloresm/rstudio,john-r-mcpherson/rstudio,piersharding/rstudio,sfloresm/rstudio,piersharding/rstudio,jzhu8803/rstudio,jzhu8803/rstudio,vbelakov/rstudio,edrogers/rstudio,JanMarvin/rstudio,thklaus/rstudio,thklaus/rstudio,edrogers/rstudio,pssguy/rstudio,maligulzar/Rstudio-instrumented,maligulzar/Rstudio-instrumented,nvoron23/rstudio,JanMarvin/rstudio,pssguy/rstudio,githubfun/rstudio,brsimioni/rstudio,jar1karp/rstudio,tbarrongh/rstudio,piersharding/rstudio,more1/rstudio,githubfun/rstudio,jrnold/rstudio,more1/rstudio,vbelakov/rstudio,githubfun/rstudio,vbelakov/rstudio,githubfun/rstudio,JanMarvin/rstudio,nvoron23/rstudio,jrnold/rstudio,more1/rstudio,edrogers/rstudio,jrnold/rstudio,jzhu8803/rstudio,pssguy/rstudio,piersharding/rstudio,brsimioni/rstudio,john-r-mcpherson/rstudio,piersharding/rstudio,sfloresm/rstudio,pssguy/rstudio,jzhu8803/rstudio,vbelakov/rstudio,jrnold/rstudio,pssguy/rstudio,vbelakov/rstudio,jzhu8803/rstudio,more1/rstudio,maligulzar/Rstudio-instrumented,sfloresm/rstudio,more1/rstudio,jar1karp/rstudio,nvoron23/rstudio,jrnold/rstudio,nvoron23/rstudio,githubfun/rstudio,jzhu8803/rstudio,edrogers/rstudio,suribes/rstudio,jar1karp/rstudio,vbelakov/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,more1/rstudio,brsimioni/rstudio,jzhu8803/rstudio,nvoron23/rstudio,john-r-mcpherson/rstudio,jrnold/rstudio,more1/rstudio,suribes/rstudio,JanMarvin/rstudio,suribes/rstudio,thklaus/rstudio,suribes/rstudio,piersharding/rstudio,edrogers/rstudio,vbelakov/rstudio,brsimioni/rstudio,jar1karp/rstudio,john-r-mcpherson/rstudio,maligulzar/Rstudio-instrumented,maligulzar/Rstudio-instrumented,maligulzar/Rstudio-instrumented,suribes/rstudio,tbarrongh/rstudio,brsimioni/rstudio,edrogers/rstudio,pssguy/rstudio,suribes/rstudio