def start_conversation(to, channelId, params={})
      Conversation.new(conversation_request(
        :post,
        'conversations/start',
        params.merge({
          :to => to,
          :channelId => channelId,
        })))
    end
def start_conversation(to, channelId, params={})
      Conversation.new(conversation_request(
        :post,
        'conversations/start',
        params.merge({
          :to => to,
          :channelId => channelId,
        })))
    end
Start a conversation