feat: add new macro to support async client #447

Job	Run time
security-audit	3m 9s
linters (ubuntu-latest)	2m 38s
build-examples (ubuntu-latest)	2m 18s
linters (macos-latest)	1m 30s
unit-test (ubuntu-latest)	3m 59s
build-examples (macos-latest)	1m 38s
unit-test (macos-latest)	2m 55s
build-examples (windows-2019)	5m 55s
unit-test (windows-2019)	6h 0m 9s
ci	0s
	6h 24m 11s

Provide feedback