异步上传临时素材的功能

[loveswimmingfish]

异步上传临时素材的功能考虑弄吗，for 企业微信临时素材限制大小和数量的限制问题 https://developer.work.weixin.qq.com/document/path/97126

[binarywang]

欢迎直接提交PR来贡现代码

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.