in utils/babel-preset.js [17:36]
module.exports = function(api) {
return {
presets: [[require('@babel/preset-env'), defaultOptions.envPresetOptions]],
plugins: [
require('@babel/plugin-proposal-class-properties'),
require('@babel/plugin-proposal-object-rest-spread'),
require('@babel/plugin-transform-async-to-generator'),
require('@babel/plugin-transform-react-jsx'),
[
require('@babel/plugin-transform-runtime'),
defaultOptions.transformRuntimeOptions
]
].filter(Boolean)
};
};