Signed-off-by: zhupuxu <zhupuxu@huawei.com>

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

From: @xulei2020
Reviewed-by: @pandoublefeng
Signed-off-by: @pandoublefeng

Signed-off-by: zhoufeng <zhoufeng54@huawei.com>

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

From: @sl_wang
Reviewed-by: @guoqi1024
Signed-off-by:

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

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

From: @yuan_shen_zhou
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui

From: @wangshuide2020
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui

From: @jiang-shuqiang
Reviewed-by: @yelihua
Signed-off-by:

From: @dayschan
Reviewed-by: @gaoxiong1,@dylangeng
Signed-off-by: @gaoxiong1

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

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

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

update copyright

add examples to CacheClient docstring

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

From: @wtcheng
Reviewed-by: @guoqi1024,@kisnwang
Signed-off-by: @guoqi1024

From: @yeyunpeng2020
Reviewed-by: @hangangqiang,@zhang_xue_tong
Signed-off-by: @hangangqiang

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

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

From: @liyanliu96
Reviewed-by: @oacjiewen,@wuxuejian
Signed-off-by: @wuxuejian

From: @liu_xiao_93
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui

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

From: @hfarahat
Reviewed-by: @nsyca,@robingrosman
Signed-off-by: @robingrosman

From: @zyli2020
Reviewed-by: @limingqi107,@cristoval,@limingqi107
Signed-off-by: @limingqi107