[#197] reduce index method lines.
[#197] reduce index method lines.

shirasagi/ss-handson,gouf/shirasagi,tecoda/opendata,t-wata-cldt/shirasagi,tecyama/opendata,masakiooba/shirasagi-1,tachikomapocket/shirasagi-_-shirasagi,ShinjiTanimoto/shirasagi,shirasagi/shirasagi,hotmix/shirasagi,tany/ss,shirasagi/shirasagi,koba5884/shirasagi,shirasagi/ss-handson,koba5884/shirasagi,sunny4381/ss-handson,sert-uw/shirasagi,sunny4381/shirasagi,tecyama/opendata,tachikomapocket/shirasagi-_-shirasagi,kaosf/shirasagi,masakiooba/shirasagi-1,sunny4381/opendata,kaosf/shirasagi,itowtips/shirasagi,togusafish/shirasagi-_-shirasagi,tecoda/opendata,sunny4381/opendata,itowtips/shirasagi,hotmix/shirasagi,koba5884/shirasagi,kaosf/shirasagi,MasakiInaya/shirasagi,masakiooba/shirasagi-1,tachikomapocket/shirasagi-_-shirasagi,tany/ss,mizoki/shirasagi,tecoda/opendata,ShinjiTanimoto/shirasagi,mizoki/shirasagi,tachikomapocket/shirasagi-_-shirasagi,t-wata-cldt/shirasagi,masakiooba/shirasagi-1,MasakiInaya/shirasagi,shirasagi/opendata,bee01/shirasagi,kaosf/shirasagi,bee01/shirasagi,tany/ss,shirasagi/ss-handson,shirasagi/ss-handson,ShinjiTanimoto/shirasagi,hotmix/shirasagi,toyodundy/shirasagi,gouf/shirasagi,tany/ss,gouf/shirasagi,shakkun/ss-temp,shirasagi/shirasagi,bee01/shirasagi,bee01/shirasagi,tany/om,togusafish/shirasagi-_-shirasagi,shakkun/ss-temp,sert-uw/shirasagi,sunny4381/ss-handson,tecyama/opendata,togusafish/shirasagi-_-shirasagi,itowtips/ss-handson,togusafish/shirasagi-_-shirasagi,toyodundy/shirasagi,shirasagi/opendata,MasakiInaya/shirasagi,mizoki/shirasagi,t-wata-cldt/shirasagi,t-wata-cldt/shirasagi,koba5884/shirasagi,sunny4381/ss-handson,ShinjiTanimoto/shirasagi,itowtips/ss-handson,toyodundy/shirasagi,itowtips/ss-handson,sunny4381/shirasagi,hotmix/shirasagi,shirasagi/opendata,shakkun/ss-temp,MasakiInaya/shirasagi,shakkun/ss-temp,itowtips/shirasagi,sunny4381/shirasagi,sunny4381/shirasagi,tecoda/opendata,toyodundy/shirasagi,sunny4381/ss-handson,sert-uw/shirasagi,tany/om,itowtips/ss-handson,tany/om,sunny4381/opendata,sert-uw/shirasagi,shirasagi/shirasagi,gouf/shirasagi,tecyama/opendata,shirasagi/opendata,mizoki/shirasagi,sunny4381/opendata,tany/om,itowtips/shirasagi