package Ġcom . example . app . network Ċ Ċ import Ġokhttp 3 . Request Ċ import Ġok io . Timeout Ċ import Ġretrofit 2 . Call Ċ import Ġretrofit 2 . Callback Ċ import Ġretrofit 2 . Response Ċ Ċ abstract Ġclass ĠCall Delegate < T , ĠR >( ĊĠĠĠ Ġprotected Ġval Ġproxy : ĠCall < T > Ċ ) Ġ: ĠCall < R > Ġ{ ĊĊĠĠĠ Ġoverride Ġfun Ġexecute (): ĠResponse < R > Ġ= Ġthrow ĠNotImplementedError () ĊĊĠĠĠ Ġfinal Ġoverride Ġfun Ġenqueue ( callback : ĠCallback < R >) Ġ= Ġdeleg ated Enqueue ( callback ) ĊĊĠĠĠ Ġfinal Ġoverride Ġfun Ġclone (): ĠCall < R > Ġ= Ġdeleg ated Clone () ĊĊĠĠĠ Ġoverride Ġfun Ġcancel () Ġ= Ġproxy . cancel () ĊĊĠĠĠ Ġoverride Ġfun Ġrequest (): ĠRequest Ġ= Ġproxy . request () ĊĊĠĠĠ Ġoverride Ġfun Ġtimeout (): ĠTimeout Ġ= Ġproxy . timeout () ĊĊĠĠĠ Ġoverride Ġfun Ġis Executed () Ġ= Ġproxy . is Executed ĊĊĠĠĠ Ġoverride Ġfun Ġis Canceled () Ġ= Ġproxy . is Canceled ĊĊĠĠĠ Ġabstract Ġfun Ġdeleg ated Enqueue ( callback : ĠCallback < R >) ĊĊĠĠĠ Ġabstract Ġfun Ġdeleg ated Clone (): ĠCall < R > Ċ } Ċ