[
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      "identifier": "en-u-hc-h12"
    },
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      "language": "en",
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      "identifier": "en-US-u-hc-h23"
    },
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      "region": "US",
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      }
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  },
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    "input": {
      "type": "Locale",
      "identifier": "en-US-u-foo"
    },
    "output": {
      "type": "Locale",
      "language": "en",
      "region": "US",
      "extensions": {
        "unicode": {
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      }
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  },
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      "type": "Locale",
      "identifier": "en-US-u-hc-h23-ca-islamic-civil-ss-true"
    },
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    },
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      "region": "US",
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    "input": {
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      "identifier": "en-US-x-private-foobar"
    },
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      "region": "US",
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    "input": {
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      "identifier": "pt-u-attr2-attr1-ca-gregory"
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    "output": {
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    },
    "output": {
      "type": "Locale",
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  },
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    "input": {
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      "identifier": "en-a-not-assigned"
    },
    "output": {
      "type": "Locale",
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  },
  {
    "input": {
      "type": "Locale",
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    },
    "output": {
      "type": "Locale",
      "identifier": "en-a-bar-u-foo-w-bar-x-u-foo"
    }
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]