Add example for UnknownAttributeError [ci skip]
Add example for UnknownAttributeError
[ci skip]

travisofthenorth/rails,fabianoleittes/rails,stefanmb/rails,ngpestelos/rails,untidy-hair/rails,kmcphillips/rails,odedniv/rails,yawboakye/rails,iainbeeston/rails,ngpestelos/rails,assain/rails,pschambacher/rails,flanger001/rails,marklocklear/rails,bolek/rails,koic/rails,Vasfed/rails,prathamesh-sonpatki/rails,aditya-kapoor/rails,shioyama/rails,rbhitchcock/rails,utilum/rails,gfvcastro/rails,stefanmb/rails,travisofthenorth/rails,deraru/rails,lcreid/rails,ttanimichi/rails,assain/rails,flanger001/rails,joonyou/rails,kamipo/rails,kenta-s/rails,schuetzm/rails,pvalena/rails,eileencodes/rails,rafaelfranca/omg-rails,mohitnatoo/rails,sealocal/rails,elfassy/rails,ledestin/rails,Edouard-chin/rails,flanger001/rails,aditya-kapoor/rails,rails/rails,odedniv/rails,bogdanvlviv/rails,palkan/rails,arjes/rails,sergey-alekseev/rails,utilum/rails,schuetzm/rails,riseshia/railsguides.kr,felipecvo/rails,rails/rails,mtsmfm/railstest,eileencodes/rails,kenta-s/rails,maicher/rails,yhirano55/rails,tgxworld/rails,kmcphillips/rails,schuetzm/rails,deraru/rails,illacceptanything/illacceptanything,assain/rails,gfvcastro/rails,ledestin/rails,pschambacher/rails,notapatch/rails,mathieujobin/reduced-rails-for-travis,Vasfed/rails,kddeisz/rails,arunagw/rails,vipulnsward/rails,riseshia/railsguides.kr,MSP-Greg/rails,xlymian/rails,jeremy/rails,Erol/rails,koic/rails,kachick/rails,mtsmfm/rails,rails/rails,yawboakye/rails,esparta/rails,shioyama/rails,starknx/rails,flanger001/rails,gfvcastro/rails,Spin42/rails,yasslab/railsguides.jp,MichaelSp/rails,printercu/rails,jeremy/rails,rossta/rails,marklocklear/rails,samphilipd/rails,joonyou/rails,mijoharas/rails,illacceptanything/illacceptanything,sealocal/rails,mijoharas/rails,voray/rails,yasslab/railsguides.jp,EmmaB/rails-1,starknx/rails,lcreid/rails,kachick/rails,riseshia/railsguides.kr,betesh/rails,iainbeeston/rails,felipecvo/rails,pvalena/rails,bogdanvlviv/rails,Edouard-chin/rails,arjes/rails,schuetzm/rails,illacceptanything/illacceptanything,printercu/rails,vipulnsward/rails,maicher/rails,fabianoleittes/rails,repinel/rails,gauravtiwari/rails,bolek/rails,fabianoleittes/rails,mechanicles/rails,mtsmfm/railstest,Envek/rails,shioyama/rails,yalab/rails,mtsmfm/railstest,baerjam/rails,illacceptanything/illacceptanything,betesh/rails,BlakeWilliams/rails,illacceptanything/illacceptanything,utilum/rails,starknx/rails,coreyward/rails,eileencodes/rails,tijwelch/rails,tijwelch/rails,sergey-alekseev/rails,kamipo/rails,maicher/rails,Stellenticket/rails,koic/rails,BlakeWilliams/rails,palkan/rails,kirs/rails-1,richseviora/rails,kmcphillips/rails,rafaelfranca/omg-rails,yhirano55/rails,EmmaB/rails-1,mathieujobin/reduced-rails-for-travis,mtsmfm/rails,bradleypriest/rails,jeremy/rails,tjschuck/rails,marklocklear/rails,notapatch/rails,ledestin/rails,mechanicles/rails,iainbeeston/rails,hanystudy/rails,Erol/rails,illacceptanything/illacceptanything,kmayer/rails,lcreid/rails,kddeisz/rails,shioyama/rails,arunagw/rails,hanystudy/rails,lucasmazza/rails,repinel/rails,coreyward/rails,gcourtemanche/rails,hanystudy/rails,gavingmiller/rails,EmmaB/rails-1,illacceptanything/illacceptanything,pschambacher/rails,gcourtemanche/rails,Spin42/rails,rbhitchcock/rails,yasslab/railsguides.jp,Spin42/rails,xlymian/rails,kmcphillips/rails,mechanicles/rails,samphilipd/rails,matrinox/rails,illacceptanything/illacceptanything,illacceptanything/illacceptanything,yahonda/rails,yawboakye/rails,tjschuck/rails,mohitnatoo/rails,deraru/rails,yawboakye/rails,sealocal/rails,riseshia/railsguides.kr,voray/rails,georgeclaghorn/rails,sergey-alekseev/rails,rossta/rails,kaspth/rails,kamipo/rails,travisofthenorth/rails,BlakeWilliams/rails,Edouard-chin/rails,lucasmazza/rails,betesh/rails,Sen-Zhang/rails,aditya-kapoor/rails,betesh/rails,bradleypriest/rails,kmayer/rails,alecspopa/rails,mijoharas/rails,esparta/rails,utilum/rails,MichaelSp/rails,joonyou/rails,notapatch/rails,untidy-hair/rails,MSP-Greg/rails,esparta/rails,gavingmiller/rails,yalab/rails,bogdanvlviv/rails,yasslab/railsguides.jp,georgeclaghorn/rails,tijwelch/rails,Erol/rails,bolek/rails,coreyward/rails,illacceptanything/illacceptanything,iainbeeston/rails,pvalena/rails,vipulnsward/rails,Envek/rails,arunagw/rails,Sen-Zhang/rails,arunagw/rails,richseviora/rails,georgeclaghorn/rails,stefanmb/rails,palkan/rails,mohitnatoo/rails,illacceptanything/illacceptanything,prathamesh-sonpatki/rails,repinel/rails,baerjam/rails,untidy-hair/rails,rails/rails,yhirano55/rails,bogdanvlviv/rails,deraru/rails,mtsmfm/rails,elfassy/rails,eileencodes/rails,kirs/rails-1,MichaelSp/rails,joonyou/rails,Vasfed/rails,lucasmazza/rails,elfassy/rails,baerjam/rails,ttanimichi/rails,baerjam/rails,gfvcastro/rails,Stellenticket/rails,kddeisz/rails,MSP-Greg/rails,jeremy/rails,fabianoleittes/rails,Vasfed/rails,gcourtemanche/rails,georgeclaghorn/rails,repinel/rails,kirs/rails-1,gauravtiwari/rails,esparta/rails,Stellenticket/rails,yahonda/rails,MSP-Greg/rails,tgxworld/rails,Envek/rails,travisofthenorth/rails,yalab/rails,ngpestelos/rails,tjschuck/rails,tgxworld/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