code: public <T> T querySingleTypedResult(String sql, String[] args, int column) {
  		return db.querySingleTypedResult(sql, args, column);
  	}
docs: Query the SQL for a single result typed object
  
  @param <T>
  result value type
  @param sql
  sql statement
  @param args
  arguments
  @param column
  column index
  @return result, null if no result
  @since 3.1.0