UI Toolkit error codes

The SDK returns the following error codes from onError and are of the type UiToolkitError.

Error Enum	Description
`EMPTY_KEY_OR_SECRET`	Authentication error, no key or secret found.
`INVALID_KEY_OR_SECRET`	Authentication error, wrong key or secret.
`EMPTY_SESSION_NAME`	Join session error, no tpc (topic) name.
`EMPTY_SESSION_TOKEN`	Join session error, no session token.
`TOKEN_EMPTY_SESSION_NAME`	Join Session error, No session name within token.
`EMPTY_USERNAME`	Join session error, no session user name.
`INVALID_SESSION_NAME`	Join session error, invalid session name.
`WRONG_PASSWORD`	Join session error, invalid session password.
`INVALID_SESSION_TOKEN`	Join session error, invalid session token.
`MISSING_PASSWORD`	Join session error, missing session password.
`SESSION_NAME_TOO_LONG`	Join Session error, session name too long.
`TOKEN_MISMATCHED_SESSION_NAME`	Join session token error, mismatched session name.
`TOKEN_USER_IDENTITY_TOO_LONG`	Join session token error, user identity too long (now named `user_key`).
`INVALID_PARAM`	Join session error, invalid parameter.
`JOIN_FAILED`	Join session error,Failed to join session.
`NO_MICROPHONE_PERMISSION`	Session error, no microphone permission.
`NO_CAMERA_PERMISSION`	Session error, no camera permission.
`CAMERA_SWITCH_FAILED`	Session error, failed to switch camera.
`LEAVE_SESSION_FAILED`	Session error, failed to leave session.
`MUTE_MIC_FAILED`	Session error, failed to mute mic.
`UNMUTE_MIC_FAILED`	Session error, failed to unmute mic.
`START_CAMERA_FAILED`	Session error, failed to start video.
`STOP_CAMERA_FAILED`	Session error, failed to stop video.
`SEND_MESSAGE_FAILED`	Session error, failed to send message.