[python-package] Load parameters from model string #9725

Job	Run time
r-sanitizers (ubuntu-latest, R-devel, gcc ASAN/UBSAN)	13m 45s
r-package (clang16, R-devel)	12m 40s
r-sanitizers (ubuntu-latest, R-devel, clang ASAN/UBSAN)	13m 42s
r-package (ubuntu-latest, gcc, R 4.3, cmake)	9m 40s
r-package (clang17, R-devel)	12m 32s
r-package (ubuntu-latest, clang, R 4.3, cmake)	9m 50s
r-package (clang18, R-devel)	11m 56s
r-package (macos-13, gcc, R 4.3, cmake)	13m 52s
r-package (clang19, R-devel)	12m 14s
r-package (macos-13, clang, R 4.3, cmake)	13m 53s
r-package (clang20, R-devel)	10m 42s
r-package (windows-latest, MINGW, R 3.6, cmake)	11m 30s
r-package (gcc14, R-devel)	4m 16s
r-package (windows-latest, MINGW, R 4.3, cmake)	13m 42s
r-package (intel, R-devel)	11m 47s
r-package (windows-2019, MSVC, R 3.6, cmake)	13m 52s
r-package (rchk, R-devel)	12m 38s
r-package (windows-2022, MSVC, R 4.3, cmake)	13m 52s
r-package (windows-latest, MINGW, R 3.6, cran)	13m 41s
r-package (windows-latest, MINGW, R 4.3, cran)	13m 42s
r-package (ubuntu-latest, gcc, R 4.3, cran)	10m 11s
r-package (macos-13, clang, R 4.3, cran)	13m 54s
r-package (macos-14, clang, R 4.3, cran)	9m 51s
all-r-package-jobs-successful	4s
	4h 37m 46s

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