deleteMessagesBefore method
- int timestamp
 
Deletes messages with timestamp that is before the specified one.
Param timestamp  The specified Unix timestamp(milliseconds).
Throws A description of the exception. See ChatError.
Implementation
Future<void> deleteMessagesBefore(int timestamp) async {
  Map result = await ChatChannel.invokeMethod(
      ChatMethodKeys.deleteMessagesBeforeTimestamp, {"timestamp": timestamp});
  try {
    ChatError.hasErrorFromResult(result);
  } on ChatError catch (e) {
    throw e;
  }
}