code: def __str__(self):
      data = {
          "project": self.project,
          "region": self.region,
          "zone": self.zone,
          "regions": self.regions,
      }
      return str(data)
  
file_path: hail/gear/gear/cloud_config.py
imports: import json
  import os
  from typing import Dict, Set
label_desc: Use image node_id 3 for calling the GCPConfig obj's underlying member method code with example usage: obj.__str__() and returns: str