[2] Improve the definition of the void type. (#757) (Ms2ger著, ) https://github.com/heycam/webidl/commit/c490bc724160d328c68a674bd38de4ededdbdd4b
[1] Improve the definition of the void type. by Ms2ger · Pull Request #757 · heycam/webidl () https://github.com/heycam/webidl/pull/757
[3] Looking for some clarity on Promise<void> · Issue #737 · heycam/webidl () https://github.com/heycam/webidl/issues/737