code: def make_update(cls, table, set_query, where=None):
          
  
          validate_table_name(table)
          if typepy.is_null_string(set_query):
              raise ValueError("SET query is null")
  
          query_list = ["UPDATE {:s}".format(Table(table)), "SET {:s}".format(set_query)]
          if where and isinstance(where, (six.text_type, Where, And, Or)):
              query_list.append("WHERE {:s}".format(where))
  
          return " ".join(query_list)
docs: Make UPDATE query.
  
          :param str table: Table name of executing the query.
          :param str set_query: SET part of the UPDATE query.
          :param str where:
              Add a WHERE clause to execute query,
              if the value is not |None|.
          :return: Query of SQLite.
          :rtype: str
          :raises ValueError: If ``set_query`` is empty string.
          :raises simplesqlite.NameValidationError:
              |raises_validate_table_name|