package Ġvideo . p ano . rtc . native . api Ċ Ċ import Ġcom . p ano . rtc . api .* Ċ import Ġvideo . p ano . rtc . native .* Ċ Ċ interface ĠIR tc Manager Creator Ġ{ ĊĊĠĠĠ Ġfun Ġcreate White board Engine ( white board Id : ĠString , Ġwhite board : ĠR tc White board ?): ĠR tc White board Engine ? ĊĊĠĠĠ Ġfun Ġcreate Annotation Mgr ( manager : ĠP ano Annotation Manager ?): ĠR tc Annotation Mgr ? ĊĊĠĠĠ Ġfun Ġcreate Network Mgr ( manager : ĠR tc Network Manager ?): ĠR tc Network Mgr ? ĊĊĠĠĠ Ġfun Ġcreate Video Stream Mgr ( manager : ĠR tc Video Stream Manager ?): ĠR tc Video Stream Mgr ? ĊĊĠĠĠ Ġfun Ġcreate Rtc Message Srv ( service : ĠR tc Message Service ?): ĠR tc Message Srv ? Ċ }