use more robust type check now that it is possible to do so
use more robust type check now that it is possible to do so

DuCorey/bokeh,DuCorey/bokeh,ptitjano/bokeh,mindriot101/bokeh,DuCorey/bokeh,jakirkham/bokeh,clairetang6/bokeh,jakirkham/bokeh,mindriot101/bokeh,justacec/bokeh,ericmjl/bokeh,clairetang6/bokeh,philippjfr/bokeh,KasperPRasmussen/bokeh,phobson/bokeh,rs2/bokeh,timsnyder/bokeh,schoolie/bokeh,aavanian/bokeh,quasiben/bokeh,Karel-van-de-Plassche/bokeh,stonebig/bokeh,bokeh/bokeh,ericmjl/bokeh,ptitjano/bokeh,mindriot101/bokeh,KasperPRasmussen/bokeh,ericmjl/bokeh,schoolie/bokeh,jakirkham/bokeh,stonebig/bokeh,clairetang6/bokeh,jakirkham/bokeh,quasiben/bokeh,ericmjl/bokeh,azjps/bokeh,draperjames/bokeh,draperjames/bokeh,dennisobrien/bokeh,draperjames/bokeh,Karel-van-de-Plassche/bokeh,KasperPRasmussen/bokeh,ptitjano/bokeh,philippjfr/bokeh,schoolie/bokeh,jakirkham/bokeh,justacec/bokeh,rs2/bokeh,dennisobrien/bokeh,percyfal/bokeh,justacec/bokeh,DuCorey/bokeh,DuCorey/bokeh,Karel-van-de-Plassche/bokeh,dennisobrien/bokeh,dennisobrien/bokeh,Karel-van-de-Plassche/bokeh,aiguofer/bokeh,timsnyder/bokeh,aavanian/bokeh,aavanian/bokeh,percyfal/bokeh,philippjfr/bokeh,aavanian/bokeh,aiguofer/bokeh,percyfal/bokeh,bokeh/bokeh,philippjfr/bokeh,bokeh/bokeh,aiguofer/bokeh,draperjames/bokeh,phobson/bokeh,stonebig/bokeh,justacec/bokeh,azjps/bokeh,timsnyder/bokeh,rs2/bokeh,Karel-van-de-Plassche/bokeh,KasperPRasmussen/bokeh,bokeh/bokeh,dennisobrien/bokeh,timsnyder/bokeh,mindriot101/bokeh,rs2/bokeh,phobson/bokeh,bokeh/bokeh,ptitjano/bokeh,phobson/bokeh,timsnyder/bokeh,azjps/bokeh,draperjames/bokeh,ptitjano/bokeh,stonebig/bokeh,schoolie/bokeh,quasiben/bokeh,aavanian/bokeh,ericmjl/bokeh,clairetang6/bokeh,aiguofer/bokeh,azjps/bokeh,phobson/bokeh,percyfal/bokeh,rs2/bokeh,percyfal/bokeh,philippjfr/bokeh,KasperPRasmussen/bokeh,aiguofer/bokeh,azjps/bokeh,schoolie/bokeh