Added get element by index
Added get element by index


Former-commit-id: 3272c6b2c1c000ae722c00b88dcf4af8bf0db5b7
julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine