code: def _HasTable(self, table_name):
      
      query = self._HAS_TABLE_QUERY.format(table_name)
  
      self._cursor.execute(query)
      return bool(self._cursor.fetchone())
docs: Determines if a specific table exists.
  
      Args:
        table_name (str): name of the table.
  
      Returns:
        bool: True if the table exists, false otherwise.