Test

examples/service-whoami-flask: Fix return types in oauth_callback #1

Job	Run time
docker-build	2m 21s
pytest (3.8, oldest_dependencies, legacy_notebook)	7m 40s
pytest (3.8, 1.*, singleuser)	2m 40s
pytest (3.9, mysql)	8m 47s
pytest (3.10, postgres)	8m 23s
pytest (3.11, subdomain, serverextension)	8m 30s
pytest (3.11, ssl, serverextension)	8m 36s
pytest (3.11, jupyverse, singleuser)	2m 56s
pytest (3.11, subdomain, noextension, singleuser)	2m 56s
pytest (3.11, ssl, noextension, singleuser)	2m 53s
pytest (3.11, browser)	6m 26s
pytest (3.11, main_dependencies)	8m 6s
	1h 10m 14s

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