curl --request GET \
  --url https://api.unibee.dev/merchant/email/template_list \
  --header 'Authorization: Bearer <token>'

{
  "code": 123,
  "data": {
    "emailTemplateList": [
      {
        "VariableGroups": [
          {
            "groupName": "<string>",
            "variables": [
              {
                "variableName": "<string>"
              }
            ]
          }
        ],
        "createTime": 123,
        "gatewayTemplateId": "<string>",
        "id": 123,
        "languageData": [
          {
            "content": "<string>",
            "language": "<string>",
            "title": "<string>"
          }
        ],
        "localizationVersions": [
          {
            "activate": true,
            "localizations": [
              {
                "content": "<string>",
                "language": "<string>",
                "title": "<string>"
              }
            ],
            "versionId": "<string>",
            "versionName": "<string>"
          }
        ],
        "merchantId": 123,
        "status": "<string>",
        "templateAttachName": "<string>",
        "templateContent": "<string>",
        "templateDescription": "<string>",
        "templateName": "<string>",
        "templateTitle": "<string>",
        "updateTime": 123
      }
    ],
    "total": 123
  },
  "merchantId": 123,
  "message": "<string>",
  "redirect": "<string>",
  "requestId": "<string>"
}