From: @mind-lh
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui

2.update the input of Slice
3.update the example of Unstack.

From: @changzherui
Reviewed-by: @zhoufeng54,@xsmq
Signed-off-by: @xsmq

From: @lx0095
Reviewed-by: @zhang_xue_tong,@hangangqiang
Signed-off-by: @zhang_xue_tong

From: @zoloft
Reviewed-by: @wangchengyuan,@hangangqiang
Signed-off-by: @wangchengyuan

From: @fuzhiye
Reviewed-by: @zhanghaibo5,@zhang_xue_tong
Signed-off-by: @zhang_xue_tong

From: @probiotics_53
Reviewed-by: @hangangqiang,@zhanghaibo5
Signed-off-by: @zhanghaibo5

From: @yangruoqi713
Reviewed-by: @zhanghaibo5,@zhang_xue_tong
Signed-off-by: @zhang_xue_tong

From: @yangruoqi713
Reviewed-by: @hangangqiang,@zhang_xue_tong
Signed-off-by: @zhang_xue_tong

From: @anancds
Reviewed-by: @cristoval,@limingqi107
Signed-off-by: @limingqi107

From: @zoloft
Reviewed-by: @wangchengyuan,@hangangqiang
Signed-off-by: @wangchengyuan

From: @yepei6
Reviewed-by: @zhoufeng54,@kingxian
Signed-off-by: @kingxian

From: @luopengting
Reviewed-by: @ouwenchang,@yelihua
Signed-off-by: @yelihua

From: @yangjie159
Reviewed-by: @hangangqiang,@wangchengyuan
Signed-off-by: @wangchengyuan

From: @wang_shaocong
Reviewed-by: @xsmq,@zhanghaibo5
Signed-off-by: @zhanghaibo5

From: @gong_zi_yan
Reviewed-by: @stsuteng,@zhunaipan
Signed-off-by: @stsuteng

From: @sunsuodong
Reviewed-by: @zhanghaibo5,@zhang_xue_tong
Signed-off-by: @zhang_xue_tong

From: @sunsuodong
Reviewed-by: @zhanghaibo5,@zhang_xue_tong
Signed-off-by: @zhang_xue_tong

From: @liubuyu
Reviewed-by: @zhoufeng54,@zhoufeng54,@jjfeing
Signed-off-by: @jjfeing

From: @xutianchun
Reviewed-by: @HilbertDavid,@zhanghaibo5
Signed-off-by: @HilbertDavid

From: @xutianchun
Reviewed-by: @HilbertDavid,@zhanghaibo5
Signed-off-by: @HilbertDavid

From: @yanglf1121
Reviewed-by: @guoqi1024,@liangchenghui
Signed-off-by: @liangchenghui

From: @hangangqiang
Reviewed-by: @zhanghaibo5,@wangchengyuan
Signed-off-by: @zhanghaibo5

From: @xu_anyue
Reviewed-by: @hangangqiang,@zhanghaibo5
Signed-off-by: @hangangqiang

From: @yangjie159
Reviewed-by: 
Signed-off-by:

From: @zhang_yi2020
Reviewed-by: @gemini524,@wuxuejian,@liangchenghui
Signed-off-by: @wuxuejian

From: @zh_qh
Reviewed-by: @ginfung,@hwhewei
Signed-off-by: @hwhewei

From: @Somnus2020
Reviewed-by: @kingxian,@zhoufeng54
Signed-off-by: @kingxian

Move auto monad eliminator out from CSE.
Eliminate auto monad nodes for output node.

From: @fuzhiye
Reviewed-by: @zhanghaibo5,@zhang_xue_tong
Signed-off-by: @zhanghaibo5