package Ġcom . mo yi . li u . audio feedback . domain . sensor Ċ Ċ import Ġio . reactivex . rx java 3 . core . Comp letable Ċ import Ġio . reactivex . rx java 3 . subjects . Publish Subject Ċ Ċ interface ĠGr avity Sensor Ġ{ ĊĠĠĠ Ġval Ġsensor DataStream : ĠPublish Subject < Triple < Float , ĠFloat , ĠFloat >> ĊĊĠĠĠ Ġfun Ġinitialise Sensor (): ĠComp letable ĊĠĠĠ Ġfun Ġregister (): ĠComp letable ĊĠĠĠ Ġfun Ġunregister () Ċ } Ċ Ċ object ĠSensor Initial isation FailedException : ĠException () Ċ object ĠSensor NotFoundException : ĠException ()