curl --request GET \
  --url https://api.example.com/items/{id}/backrefs \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "<string>",
      "source_id": "<string>",
      "target_id": "<string>",
      "edge_type": "<string>",
      "properties": {},
      "created_at": "<string>",
      "updated_at": "<string>",
      "tenant_id": "<string>"
    }
  ],
  "cursor": "<string>",
  "has_more": true
}