curl --request GET \
  --url https://api.hubapi.com/crm/v3/imports/ \
  --header 'Authorization: Bearer <token>'

{
  "paging": {
    "next": {
      "after": "<string>",
      "link": "<string>"
    },
    "prev": {
      "before": "<string>",
      "link": "<string>"
    }
  },
  "results": [
    {
      "createdAt": "2023-11-07T05:31:56Z",
      "id": "<string>",
      "importName": "<string>",
      "importRequestJson": {},
      "importSource": "API",
      "importTemplate": {
        "templateId": 123,
        "templateType": "admin_defined"
      },
      "mappedObjectTypeIds": [
        "<string>"
      ],
      "metadata": {
        "counters": {},
        "fileIds": [
          "<string>"
        ],
        "objectLists": [
          {
            "listId": "<string>",
            "objectType": "<string>"
          }
        ]
      },
      "optOutImport": true,
      "state": "CANCELED",
      "updatedAt": "2023-11-07T05:31:56Z"
    }
  ]
}