iw7-mod/deps/curl/docs/cmdline-opts/proxy-key.md

c	SPDX-License-Identifier	Long	Help	Arg	Category	Added	Multi	See-also	Example
Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.	curl	proxy-key	Private key for HTTPS proxy	<key>	proxy tls	7.52.0	single	proxy-key-type proxy	--proxy-key here -x https://proxy $URL

--proxy-key

Same as --key but used in HTTPS proxy context.