package Ġcom . zhang t eng . base library . mv vm . vm Ċ Ċ import Ġcom . zhang t eng . mv vm . base . Base ViewModel Ċ import Ġcom . zhang t eng . base library . mv vm . repository . Base Mv vm Demo Repository Ċ Ċ class ĠBase Mv vm Demo ViewModel Ġ: ĠBase ViewModel () Ġ{ ĊĠĠĠ Ġprivate Ġval Ġm Repository Ġby Ġlazy Ġ{ ĠBase Mv vm Demo Repository () Ġ} Ċ }