us-docker.pkg.dev/grpc-testing/testing-images-public/grpc_artifact_python_manylinux2014_x64:e81af0c6d454929785e8126fc993cbd93da5c014@sha256:0725226dfb1f707ed3cb2d7cafb2376c33fa89d58577bf80e1d76a0c3bc92c64