Started adding doc strings
Started adding doc strings



Former-commit-id: 6c6ff0401dac3105f3619181e19d3e7a8710ea79
julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine