fix: update to reflect the fact that coin's learn does not return a prediction #5621

Job	Run time
manylinux.amd64.py3.6.build	6m 8s
manylinux.amd64.py3.7.build	6m 21s
manylinux.amd64.py3.8.build	7m 16s
manylinux.amd64.py3.9.build	8m 24s
manylinux.amd64.py3.10.build	7m 47s
ubuntu-latest.amd64.py3.8.sdist-bundle	51s
manylinux.aarch64.py${{ matrix.config.version }}.build	0s
macos.amd64.py3.6.build	14m 8s
macos.amd64.py3.7.build	12m 38s
macos.amd64.py3.8.build	11m 7s
macos.amd64.py3.9.build	12m 45s
macos.amd64.py3.10.build	11m 43s
windows-2019.amd64.py3.6.build	10m 11s
windows-2019.amd64.py3.7.build	11m 32s
windows-2019.amd64.py3.8.build	10m 38s
windows-2019.amd64.py3.9.build	12m 16s
windows-2019.amd64.py3.10.build	12m 11s
manylinux.aarch64.py${{ matrix.config.version }}.test	0s
ubuntu-latest.amd64.py3.8.sdist-build-test	7m 2s
manylinux.amd64.py3.6.test	3m 39s
manylinux.amd64.py3.7.test	2m 24s
manylinux.amd64.py3.8.test	2m 25s
manylinux.amd64.py3.9.test	2m 31s
manylinux.amd64.py3.10.test	2m 37s
windows-2019.amd64.py3.6.test	3m 5s
windows-2019.amd64.py3.7.test	3m 22s
windows-2019.amd64.py3.8.test	4m 52s
windows-2019.amd64.py3.9.test	3m 8s
windows-2019.amd64.py3.10.test	2m 49s
macos.amd64.py3.6.test	3m 45s
macos.amd64.py3.7.test	2m 47s
macos.amd64.py3.8.test	3m 0s
macos.amd64.py3.9.test	3m 8s
macos.amd64.py3.10.test	3m 4s
	3h 29m 34s

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