code: def derived(self, statement, params=(), replace=False):
          
          return Query(
              db=self.db,
              sql=(statement,) if replace else self.sql + (statement,),
              params=self.params + params,
          )
docs: Returns a new query object set up correctly with
          the *statement* and *params* appended to the end
          of the new instance's internal query and params,
          along with the current instance's connection.
  
          :param statement: The SQL query string to append.
          :param params: The parameters to append.
          :param replace: Whether to replace the entire
              SQL query.