code: def _lookup_vultrid(which_key, availkey, keyname):
      '''
      Helper function to retrieve a Vultr ID
      '''
      if DETAILS == {}:
          _cache_provider_details()
  
      which_key = six.text_type(which_key)
      try:
          return DETAILS[availkey][which_key][keyname]
      except KeyError:
          return Falsf _lookup_vultrid(which_key, availkey, keyname):
      '''
      Helper function to retrieve a Vultr ID
      '''
      if DETAILS == {}:
          _cache_provider_details()
  
      which_key = six.text_type(which_key)
      try:
          return DETAILS[availkey][which_key][keyname]
      except KeyError:
          return False
docs: Helper function to retrieve a Vultr ID