| 123456789101112131415161718 | // These mappings represent the builtin/feature proposals that have been// shipped by browsers, and are enabled by the `shippedProposals` option.const builtIns = {  "es7.array.flat-map": "Array.prototype.{flat, flatMap} / Array.prototype.flatMap"};const features = {};const pluginSyntaxMap = new Map([  ["proposal-async-generator-functions", "syntax-async-generators"],  ["proposal-object-rest-spread", "syntax-object-rest-spread"],  ["proposal-optional-catch-binding", "syntax-optional-catch-binding"],  ["proposal-unicode-property-regex", null],  ["proposal-json-strings", "syntax-json-strings"],]);module.exports = { builtIns, features, pluginSyntaxMap };
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