Here is a list of all files with brief descriptions:

AgoraBase.cs
AgoraCallback.cs
AgoraChannel.cs
AgoraChannelCallback.cs
AgoraGameObject.cs
AgoraGamingRtcEngine.cs
AudioEffectManager.cs
AudioPlaybackDeviceManager.cs
AudioRawDataManager.cs
AudioRecordingDeviceManager.cs
LocalSpatialAudioEngine.cs
MediaRecorder.cs
MetaDataObserver.cs
PacketObserver.cs
ScreenCaptureManager.cs
VideoDeviceManager.cs
VideoRawDataManager.cs
VideoRender.cs
VideoSurface.cs