Browsers List coverage of ES6 generators and async functions

const browserslist = require('browserslist');

browserslist.coverage(browserslist('> 1%'));

browserslist.coverage(browserslist('> 1% in US'), 'US');

browserslist.coverage(browserslist('supports es6-generators'));

browserslist.coverage(browserslist('supports async-functions'));

browserslist.coverage(browserslist('supports async-iterations-and-generators'));

browserslist.coverage(browserslist('supports es6-generators and supports async-functions and supports async-iterations-and-generators'));

browserslist.coverage(browserslist('supports object-entries'));

browserslist.coverage(browserslist('supports bigint'));

browserslist('> 1%');

browserslist('cover 99%');