change ruby default unimplemented ruby server handler to have two aguments

remove test of exception on ruby thread pool overload

Revert "Revert "Reduce memory bloat (each server cq is very expensive)""

No need for copyright on generated files

PHP: fix code style

Update Python examples with fresh generated code.

Rename interop-as-a-unit-test "intraop".

Set Python documentation copyright

It's been confusing that these tests have been called "interop" but
are not actually tests of interoperation.

Merge pull request #9206 from soltanmm-google/is-the-world-is-moving-too-fast-or-am-I-moving-too-slow

Add `auto-gen`d comment to `_pb2_grpc.py` files

Remove for loop initial declarations

Some of these files contain the magic string "DO NOT EDIT" but we do
not wish for our tests to depend upon that.

Check and fail if user provides a metadata key starting with :

Fix jwt verifier

Cleanup and speedup sanity tests

Fix Python artifact build

Update interop html template location

Ruby: show error class and message instead of unknown

Clean up tools/run_tests directory

Better qps_json_driver message when QPS_WORKERS env is missing

- Initializes grpc correctly in the JWT utils.
- Make the email mapping work with the new service accounts produced by
  Google IAM.
- Adding check for email issuers where the issuer has to be the subject as well.
- Implementing portable version of memrchr.

Change grpcio_tools to grpcio-tools

allow disable core_list setting and override qps server in benchmarks