package Ġcom . n stud ios app dev . core . pre conditions Ċ Ċ interface ĠAndroid Pre Conditions Ġ{ ĊĠĠĠ Ġfun Ġassert MainThread () ĊĊĠĠĠ Ġfun Ġassert Ui Thread () ĊĊĠĠĠ Ġfun Ġassert Worker Thread () Ċ } Ċ