package Ġcom . ar re is . bright nes ss witch er . domain . datasource Ċ Ċ import Ġcom . ar re is . bright nes ss witch er . domain . entity . Brightness Level Ċ Ċ interface ĠB rightness Level DataSource Ġ{ ĊĠĠĠ Ġfun Ġreset Brightness Levels () ĊĠĠĠ Ġfun Ġbrightness Levels (): ĠList < Brightness Level >? ĊĠĠĠ Ġfun Ġsave Brightness Levels ( levels : ĠList < Brightness Level >) Ċ }