code: def extract_region(m: Dict[str, Any]) -> ct.Region:
      """Returns the region specified in the args; defaults to an environment
      variable. If that's not supplied defaults to the default cloud provider from
      caliban.platform.cloud.
  
      """
      region = m.get("region") or os.environ.get("REGION")
  
      if region:
          return ct.parse_region(region)
  
      return DEFAULT_REGION
  
imports: import os
  import sys
  from enum import Enum
  from typing import Any, Dict, List, Optional, Tuple
  import schema
  import caliban.platform.cloud.types
  import caliban.util.schema
label_desc: Use image node_id 6 for calling a global function with example usage: extract_region(m) and returns: DEFAULT_REGION, ct