code: def is_all_field_none(self):
          
  
          if self._BunqMeFundraiserResult is not None:
              return False
  
          if self._BunqMeTab is not None:
              return False
  
          if self._BunqMeTabResultInquiry is not None:
              return False
  
          if self._BunqMeTabResultResponse is not None:
              return False
  
          if self._ChatMessage is not None:
              return False
  
          if self._DraftPayment is not None:
              return False
  
          if self._IdealMerchantTransaction is not None:
              return False
  
          if self._Invoice is not None:
              return False
  
          if self._MasterCardAction is not None:
              return False
  
          if self._MonetaryAccount is not None:
              return False
  
          if self._Payment is not None:
              return False
  
          if self._PaymentBatch is not None:
              return False
  
          if self._RequestInquiry is not None:
              return False
  
          if self._RequestInquiryBatch is not None:
              return False
  
          if self._RequestResponse is not None:
              return False
  
          if self._ShareInviteBankInquiry is not None:
              return False
  
          if self._ShareInviteBankResponse is not None:
              return False
  
          if self._ScheduledPayment is not None:
              return False
  
          if self._ScheduledInstance is not None:
              return False
  
          if self._TabResultInquiry is not None:
              return False
  
          if self._TabResultResponse is not None:
              return False
  
          if self._User is not None:
              return False
  
          return True
docs: :rtype: bool