code: def is_1p_image_uri(image_uri: str) -> bool:
      """Shows if the given image_uri is owned by a 1st party account"""
      image_uri_account = image_uri[0:12]
      return image_uri_account in all_accounts
  
label_desc: Use image node_id 1 for calling a global function with example usage: is_1p_image_uri(image_uri) and returns: unknown