//@ file : From Page (" sleep Data ") Ċ import Ġkr ang l . DataFrame Ċ Ċ val Ġsleep Data : ĠDataFrame Ġby Ġinject () Ċ Ċ fun Ġprocess (): ĠDataFrame Ġ{ ĊĠĠĠ Ġval Ġs lim Sleep Ġ= Ġsleep Data . select (" name ", Ġ" sleep _ total ") ĊĠĠĠ Ġreturn Ġs lim Sleep Ċ }