'ID', 'Session_id' => '会话ID', 'Sender_identity' => '发送人身份', 'Sender_identity 0' => '客服', 'Sender_identity 1' => '用户', 'Sender_id' => '发送人ID', 'Message_type' => '消息类型', 'Message_type 0' => '富文本', 'Message_type 1' => '图片', 'Message_type 2' => '文件', 'Message_type 3' => '系统消息', 'Message_type 4' => '商品卡片', 'Message_type 5' => '订单卡片', 'Message' => '消息内容', 'Status' => '状态', 'Status 0' => '未读', 'Status 1' => '已读', 'Set to Status 0' => '设置为未读', 'Set to Status 1' => '设置为已读', 'Createtime' => '创建时间' ];