code: def is_single_reference(property: Dict) -> bool:
      if property.get("type") is not None:
          return False
  
      return bool(property.get("$ref"))
  
file_path: opyrator/src/opyrator/ui/schema_utils.py
imports: from typing import Dict
label_desc: Use image node_id 11 for calling a global function with example usage: is_single_reference(property) and returns: bool, False