add definition for the output of fitting and model #4481

Job	Run time
Build source distribution	18s
determine-arm64-runner	1s
Build wheels for cp311-manylinux_x86_64	5m 10s
Build wheels for cp311-manylinux_x86_64	5m 31s
Build wheels for cp311-macosx_x86_64	8m 4s
Build wheels for cp311-macosx_arm64	4m 35s
Build wheels for cp311-win_amd64	5m 19s
Build wheels for cp310-manylinux_aarch64	4m 19s
build_pypi_index	8s
build_docker (12)	2m 28s
build_docker (_cu11, 11)	2m 40s
upload_pypi	0s
deploy_pypi_index	0s
Pass testing build wheels	2s
	38m 35s

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