{
  "env": {
    "development": {
      "presets": ["@babel/env"],
      "plugins": [
        ["@babel/plugin-proposal-decorators", {"legacy": true}],
        ["babel-plugin-transform-builtin-extend", {
          "globals": ["Error"]
        }]
      ]
    },
    "firefox": {
      "plugins": [
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        "@babel/transform-modules-commonjs",
        "@babel/syntax-object-rest-spread"
      ]
    }
  }
}