Add to_dict methods #2695

Job	Run time
cpp_build (ubuntu-latest)	2m 2s
cpp_build (macos-14)	1m 58s
cpp_build (windows-latest)	3m 40s
cpp_build (macos-latest)	2m 13s
py_build_test (ubuntu-latest, 3.11)	1m 45s
py_build_test (ubuntu-latest, 3.9)	1m 51s
py_build_test (ubuntu-latest, 3.10)	1m 58s
py_build_test (ubuntu-latest, 3.13)	2m 0s
py_build_test (ubuntu-latest, 3.12)	1m 44s
py_build_test (windows-latest, 3.10)	1m 58s
py_build_test (windows-latest, 3.12)	1m 58s
py_build_test (windows-latest, 3.11)	1m 58s
py_build_test (windows-latest, 3.9)	1m 57s
py_build_test (windows-latest, 3.13)	1m 52s
py_build_test (macos-14, 3.12)	1m 58s
py_build_test (macos-14, 3.10)	2m 2s
py_build_test (macos-14, 3.9)	2m 1s
py_build_test (macos-14, 3.13)	2m 2s
py_build_test (macos-latest, 3.10)	1m 49s
py_build_test (macos-latest, 3.13)	1m 59s
py_build_test (macos-14, 3.11)	1m 54s
py_build_test (macos-latest, 3.12)	1m 56s
py_build_test (windows-latest, mingw64, msys2)	1m 39s
py_build_test (macos-latest, 3.11)	1m 57s
package_sdist	0s
package_wheels	0s
	48m 11s

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