package Ġsite . yo ons ang . tier where . src . main . rank Ċ Ċ import Ġsite . yo ons ang . tier where . src . main . rank . model . Ch all enger League Ċ import Ġsite . yo ons ang . tier where . src . main . rank . model . Grand master League Ċ Ċ interface ĠRank View Ġ{ ĊĊĠĠĠ Ġfun Ġget Ch all engers Success ( response : ĠCh all enger League ) ĊĊĠĠĠ Ġfun Ġget Ch all engers Failure ( message : ĠString ) ĊĊĠĠĠ Ġfun Ġget Grand m asters Success ( response : ĠG rand master League ) ĊĊĠĠĠ Ġfun Ġget Grand m asters Failure ( message : ĠString ) Ċ }