code: def leak_report() -> str:
      tracer = _get_mem_actor()
      return ray.get(tracer.leak_report.remote())
  
file_path: ray/python/ray/data/_internal/memory_tracing.py
imports: from io import StringIO
  from typing import Dict, List
  import ray
  from ray.data.context import DataContext
label_desc: Use image node_id 3 for calling a global function with example usage: leak_report() and returns: ray