curl --request GET \
  --url https://api.example.com/v1/voiceai/knowledge-base/{document_id} \
  --header 'x-api-key: <api-key>'

{
  "id": "<string>",
  "name": "<string>",
  "metadata": {
    "created_at_unix_secs": 123,
    "last_updated_at_unix_secs": 123,
    "size_bytes": 123
  },
  "access_info": {
    "is_creator": true,
    "creator_name": "<string>",
    "creator_email": "<string>",
    "role": "admin"
  },
  "url": "<string>",
  "extracted_inner_html": "<string>",
  "supported_usages": [
    "prompt"
  ],
  "folder_parent_id": "<string>",
  "folder_path": [
    {
      "id": "<string>",
      "name": "<string>"
    }
  ],
  "type": "url"
}