package Ġf rc . robot . sub systems Ċ Ċ import Ġedu . wpi . first . wp ilib j . drive . Differ ential Drive Ċ import Ġedu . wpi . first . wp ilib j 2 . command . Subsystem Base Ċ import Ġf rc . robot . Mock able Ċ Ċ @ Mock able Ċ class ĠDrive Subsystem Ġ( private Ġval Ġdrive : ĠD iffer ential Drive ) Ġ: ĠSub system Base () Ġ{ ĊĠĠĠ Ġfun Ġar cade Drive Ġ( fwd : ĠDouble , Ġrot : ĠDouble ) Ġ{ ĊĠĠĠĠĠĠĠ Ġdrive . ar cade Drive ( fwd , Ġrot ) ĊĠĠĠ Ġ} Ċ }