v2::V2NIMSignallingCallParams 成员列表

成员的完整列表，这些成员属于 v2::V2NIMSignallingCallParams,包括所有继承而来的类成员

calleeAccountId	v2::V2NIMSignallingCallParams
channelExtension	v2::V2NIMSignallingCallParams
channelName	v2::V2NIMSignallingCallParams
channelType	v2::V2NIMSignallingCallParams
pushConfig	v2::V2NIMSignallingCallParams
requestId	v2::V2NIMSignallingCallParams
rtcConfig	v2::V2NIMSignallingCallParams
serverExtension	v2::V2NIMSignallingCallParams
signallingConfig	v2::V2NIMSignallingCallParams