.babelrc

{
  "presets": ["module:metro-react-native-babel-preset"],

  "plugins": [
    [
      "module-resolver",
      {
        "root": [
          "./src",
          "./assets"
        ],
        "alias": {
          "app": "./src",
          "assets": "./assets"
        }
      }
    ],
    [
      "babel-plugin-require-context-polyfill",
      {
        "alias": {
          "app": "./src"
        }
      }
    ],

    "@babel/plugin-proposal-export-default-from",
    "@babel/plugin-proposal-export-namespace-from",

    "@babel/plugin-transform-flow-strip-types",
    [
      "@babel/plugin-proposal-decorators",
      {
        "legacy": true
      }
    ],
    [
      "@babel/plugin-proposal-class-properties",
      {
        "loose": false
      }
    ],

    [
      "@babel/plugin-transform-runtime",
      {

      }
    ],
  ],
  "sourceMaps": true
}