docs: def grok_state(self, obj):
          """Determine the desired state of this
          resource based on data present"""
          if 'state' in obj:
              my_state = obj['state'].lower()
              if my_state != 'absent' and my_state != 'present':
                  raise aomi_excep \
                      .Validation('state must be either "absent" or "present"')
  
          self.present = obj.get('state', 'present').lower() == 'present'