code: def _finalize_database(self, version):
          
          require_integer(version, "version")
          create_metadata_sql = \
              "CREATE TABLE %s (version INT)" % METADATA_TABLE_NAME
          self.execute_sql(create_metadata_sql)
          insert_version_sql = \
              "INSERT INTO %s VALUES (%s)" % (METADATA_TABLE_NAME, version)
          self.execute_sql(insert_version_sql)
docs: Create metadata table for database with version number.
  
          Parameters
          ----------
          version : int
              Tag created database with user-specified version number