Add back get_raw_values/get_raw_values_into #343

Job	Run time
rustfmt	1m 8s
conda (ubuntu, conda-forge, stable)	1m 36s
mpi-runner	1m 49s
conda (windows, conda-forge, stable)	2m 31s
Address sanitizer	1m 27s
conda (macos, conda-forge, stable)	1m 2s
static builds (ubuntu-latest, stable)	1m 39s
test apt (stable)	1m 22s
static builds (windows-latest, stable-msvc)	4m 44s
test apt (beta)	43s
static builds (windows-latest, stable-gnu)	5m 39s
static builds (macos-12, stable)	3m 59s
test apt (nightly)	38s
static builds (macos-latest, stable)	2m 13s
	30m 30s

Provide feedback