Intent of command.mjs|title=Command async returns promise that resolves arguments once handler succeeds|occurrence=1

All 2 exact tests in this concept. Every test is marked by where it enters the hierarchy.

mocha:v1|namespace=yargs@4153e0f097aeaf43a71a2530db6dda51dff2c544:main|file=test/ 2 tests
- mocha:v1|namespace=yargs@4153e0f097aeaf43a71a2530db6dda51dff2c544:main|file=test/command.mjs|title=Command async returns promise that resolves arguments once handler succeeds|occurrence=1 Introduced here
- mocha:v1|namespace=yargs@4153e0f097aeaf43a71a2530db6dda51dff2c544:main|file=test/middleware.mjs|title=middleware async calls the command handler when all middleware promises resolve|occurrence=1 Inherited middleware.mjs|title=middleware async calls the command handler when all middleware promises resolve|occurrence=1