curl --request GET \
  --url https://matcher.sandbox.lerian.net/v1/imports/formats \
  --header 'Authorization: Bearer <token>'

{
  "regions": [
    {
      "families": [
        {
          "family": "<string>",
          "variants": [
            {
              "key": "<string>",
              "variant": "<string>"
            }
          ]
        }
      ],
      "region": "<string>"
    }
  ]
}