Java Qianfan SDK can not support sending image in v2 version API

[EricYuOvO]

Feature request

If I need to use vision ability, I have to write a HTTP request to get the but not just need to using Qianfan SDK. Because 'com.baidubce.qianfan.model.chat.v2.Message' only has a 'String' type 'content' but not 'Object' type.This is a design flaw in the Java SDK.

contribution or solutions

No response