Allow running many runs per test without flooding the logs

Reintroduce test timeouts eliminated by mistake

Get wrapped endpoint's fd in secure_endpoint's endpoint_get_fd

Fix metrics server

v1.0.x manual upmerge

Add Python Client to Test Negative HTTP2 Conditions

Documentation for the new tests can be found https://github.com/grpc/grpc/blob/master/doc/negative-http2-interop-test-descriptions.md

grpclb: skip slash in server uri path if present

Add negative http2 interop description file

Manual changes:

 - Fixed use of Exception.message in _invalid_metadata_test.py

 - Fixed merge of one_failed_as_unavailable in rpc_server_spec.rb

 - Added "set -e" to generate_build_additions.sh

Modify HTTP/2 test server's command-line arguments

don't print multiple imports to protobuf modules

Add grpc_pollset_set to grpc_resolve_address

Deflake lb_policies_test

Make event order consistent, and make 'end' and 'error' mutually exclusive

Add copyright to new files

Use snake_case names for default rpc method implementations

Merge pull request #9120 from soltanmm-google/if-you-run-away-from-things-it-just-means-you're-going-to-see-them-again-when-you-wrap-around-the-universe

Fix Python setup-time diagnostics

Add check on return value from start_client_batch

accept non-positional arguments.

C++ filter API cleanup