Add function into_inner to Easy and Easy2 (#586) #552

Job	Run time
Publish Documentation	1m 57s
Rustfmt	15s
Test (x86_64)	2m 43s
Test (i686)	2m 43s
Test (x86_64-musl)	5m 56s
Test (mingw)	2m 21s
Test (system-curl)	2m 22s
Test (openssl-110)	2m 48s
Test (x86_64-beta)	2m 48s
Test (x86_64-nightly)	2m 48s
Test (macos)	1m 51s
Test (win64)	6m 20s
Test (win32)	6m 57s
Test (ubuntu-lts, ubuntu-24.04, 1.75, linux64, x86_64-unknown-linux-gnu)	2m 27s
	44m 16s

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