curl --request GET \
  --url https://app.herondata.io/api/end_user_files/rename_rules \
  --header 'x-api-key: <api-key>'

[
  {
    "end_user_file_class": "<string>",
    "file_name_template": "<string>",
    "is_enabled": true,
    "heron_id": "<string>",
    "variables": [
      {
        "description": "<string>",
        "examples": [
          "<string>"
        ],
        "key": "<string>",
        "name": "<string>"
      }
    ]
  }
]