code: def ToJson(self):
          
          return {
              'assetId': self.AssetId.To0xString(),
              'assetType': self.AssetType,
              'name': self.GetName(),
              'amount': self.Amount.value,
              'available': self.Available.value,
              'precision': self.Precision,
              'fee': self.Fee.value,
              'address': self.FeeAddress.ToString(),
              'owner': self.Owner.ToString(),
              'admin': Crypto.ToAddress(self.Admin),
              'issuer': Crypto.ToAddress(self.Issuer),
              'expiration': self.Expiration,
              'is_frozen': self.IsFrozen
          }
docs: Convert object members to a dictionary that can be parsed as JSON.
  
          Returns:
               dict: