[release-1.13] Actor client metadata in release-1.13 #1166
Merged
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Description
Allows actor clients to include metadata in their calls, mapping to HTTP headers or gRPC metadata.
Issue reference
We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to implementation.
Please reference the issue this PR will close: #1071
Checklist
Please make sure you've completed the relevant tasks for this PR, out of the following list: