getMessagesFromConversationUntilBookmark
Retrieve the list of the first messages until the bookmark of the conversation plus 10 messages before it.
The response is in the complete
method as a @object:ArrayItemList<@object:IMMessage>.
The response is also available by listening the @object:ArrayItemList<@object:IMMessage> of the conversation.
Parameters
conversation
IRainbowConversation The conversation to retrieve the messages