help request: Is it possible to access Proxy Cache Plugin saved data?

[PlasticJonbenetDoll]

Description

Hi,
I'm wondering is it possible to access cached data. For example:

1. Client send request to Upstream1.
2. Response1 from Upstream1 is cached by Proxy Cache Plugin.
3. Client send request to Upstream2.
4. Apisix adds cached Response1 to headers of request to Upstream2.

Environment

• APISIX version (run apisix version):
• Operating system (run uname -a):
• OpenResty / Nginx version (run openresty -V or nginx -V):
• etcd version, if relevant (run curl http://127.0.0.1:9090/v1/server_info):
• APISIX Dashboard version, if relevant:
• Plugin runner version, for issues related to plugin runners:
• LuaRocks version, for installation issues (run luarocks --version):