@babel/preset-env: `DEBUG` option

Using targets:
{
  "firefox": "52",
  "node": "7.4"
}

Using modules transform: auto

Using plugins:
  proposal-class-static-block { firefox < 93, node < 16.11 }
  proposal-private-property-in-object { firefox < 90, node < 16.9 }
  proposal-class-properties { firefox < 90, node < 12 }
  proposal-private-methods { firefox < 90, node < 14.6 }
  proposal-numeric-separator { firefox < 70, node < 12.5 }
  proposal-logical-assignment-operators { firefox < 79, node < 15 }
  proposal-nullish-coalescing-operator { firefox < 72, node < 14 }
  proposal-optional-chaining { firefox < 74, node < 14 }
  proposal-json-strings { firefox < 62, node < 10 }
  proposal-optional-catch-binding { firefox < 58, node < 10 }
  proposal-async-generator-functions { firefox < 57, node < 10 }
  proposal-object-rest-spread { firefox < 55, node < 8.3 }
  transform-dotall-regex { firefox < 78, node < 8.10 }
  proposal-unicode-property-regex { firefox < 78, node < 10 }
  transform-named-capturing-groups-regex { firefox < 78, node < 10 }
  transform-literals { firefox < 53 }
  transform-function-name { firefox < 53 }
  transform-for-of { firefox < 53 }
  transform-unicode-escapes { firefox < 53 }
  transform-destructuring { firefox < 53 }
  proposal-export-namespace-from { firefox < 80, node < 13.2 }
  bugfix/transform-async-arrows-in-class { node < 7.6 }
  transform-modules-commonjs
  proposal-dynamic-import

Using polyfills: No polyfills were added, since the `useBuiltIns` option was not set.
