code: def setup_sql(self, graphs):
          
          with closing(self.db.cursor()) as cursor:
              for table in graphs:
                  cursor.execute(SQL.CREATE_TABLE % (table))
                  for index in SQL.INDEXES:
                      cursor.execute(index % (table))
              self.db.commit()
docs: Sets up the SQL tables for the graph object,
          and creates indexes as well.
  
          :param graphs: The graphs to create.