code: def validate_schema(cls, tx):
          
          _validate_schema(TX_SCHEMA_COMMON, tx)
          _validate_schema(TX_SCHEMA_CREATE, tx)
          if cls.TX_SCHEMA_CUSTOM:
              _validate_schema(cls.TX_SCHEMA_CUSTOM, tx)
docs: Validate the election transaction. Since `ELECTION` extends `CREATE` transaction, all the validations for
          `CREATE` transaction should be inherited