check object type
check object type

christophelec/nbviewer,roxyboy/nbviewer,franblas/beaker-sharing-server,twosigma/beaker-sharing-server,AlfiyaZi/nbviewer,franblas/beaker-sharing-server,franblas/beaker-sharing-server,imsparsh/nbviewer,franblas/beaker-sharing-server,Sage-Bionetworks/nbviewer,bollwyvl/nbviewer,roxyboy/nbviewer,twosigma/beaker-sharing-server,thomasyu888/nbviewer,Sage-Bionetworks/nbviewer,iamjakob/nbviewer,imsparsh/nbviewer,Jay-Oh-eN/nbviewer,thomasyu888/nbviewer,twosigma/beaker-sharing-server,Jay-Oh-eN/nbviewer,iamjakob/nbviewer,twosigma/beaker-sharing-server,AlfiyaZi/nbviewer,christophelec/nbviewer,bollwyvl/nbviewer