{
  "presets": [
    [
      "@babel/preset-env",
      {
        "modules": "commonjs",
        "debug": false
      }
    ],
    "@babel/preset-react"
  ],
  "plugins": [
    "@babel/plugin-transform-proto-to-assign",
    [
      "@babel/plugin-transform-classes",
      {
        "loose": true
      }
    ],
    "@babel/plugin-transform-runtime",
    // Stage 0
    "@babel/plugin-proposal-function-bind",
    // Stage 1
    "@babel/plugin-proposal-export-default-from",
    "@babel/plugin-proposal-logical-assignment-operators",
    [
      "@babel/plugin-proposal-optional-chaining",
      {
        "loose": false
      }
    ],
    [
      "@babel/plugin-proposal-pipeline-operator",
      {
        "proposal": "minimal"
      }
    ],
    [
      "@babel/plugin-proposal-nullish-coalescing-operator",
      {
        "loose": false
      }
    ],
    "@babel/plugin-proposal-do-expressions",
    // Stage 2
    [
      "@babel/plugin-proposal-decorators",
      {
        "legacy": true
      }
    ],
    "@babel/plugin-proposal-function-sent",
    "@babel/plugin-proposal-export-namespace-from",
    "@babel/plugin-proposal-numeric-separator",
    "@babel/plugin-proposal-throw-expressions",
    // Stage 3
    "@babel/plugin-syntax-dynamic-import",
    "@babel/plugin-syntax-import-meta",
    [
      "@babel/plugin-proposal-class-properties",
      {
        "loose": false
      }
    ],
    "@babel/plugin-proposal-json-strings"
  ],
  "ignore": [
    "**/*.d.ts"
  ],
  "env": {
    "test": {
      "presets": [
        [
          "@babel/preset-env",
          {
            "modules": "commonjs",
            "useBuiltIns": "usage",
            "debug": false
          }
        ],
        "@babel/preset-react"
      ],
      "plugins": [
        "@babel/plugin-transform-proto-to-assign",
        [
          "@babel/plugin-transform-classes",
          {
            "loose": true
          }
        ],
        "@babel/plugin-transform-runtime",
        // Stage 0
        "@babel/plugin-proposal-function-bind",
        // Stage 1
        "@babel/plugin-proposal-export-default-from",
        "@babel/plugin-proposal-logical-assignment-operators",
        [
          "@babel/plugin-proposal-optional-chaining",
          {
            "loose": false
          }
        ],
        [
          "@babel/plugin-proposal-pipeline-operator",
          {
            "proposal": "minimal"
          }
        ],
        [
          "@babel/plugin-proposal-nullish-coalescing-operator",
          {
            "loose": false
          }
        ],
        "@babel/plugin-proposal-do-expressions",
        // Stage 2
        [
          "@babel/plugin-proposal-decorators",
          {
            "legacy": true
          }
        ],
        "@babel/plugin-proposal-function-sent",
        "@babel/plugin-proposal-export-namespace-from",
        "@babel/plugin-proposal-numeric-separator",
        "@babel/plugin-proposal-throw-expressions",
        // Stage 3
        "@babel/plugin-syntax-dynamic-import",
        "@babel/plugin-syntax-import-meta",
        [
          "@babel/plugin-proposal-class-properties",
          {
            "loose": false
          }
        ],
        "@babel/plugin-proposal-json-strings"
      ]
    }
  }
}