us-docker.pkg.dev/grpc-testing/testing-images-public/python_dev_fedora34_x64:5b754243660c2e5e03ac90bd2efa476cde04bc5c@sha256:20bc3a6283a99407eb637b3cde1ff3e1288a1e21388a1dc385c2b4df5a1eb1c2