code: public <T> T querySingleTypedResult(String sql, String[] args) {
  		@SuppressWarnings("unchecked")
  		T result = (T) querySingleResult(sql, args);
  		return result;
  	}
docs: Query the SQL for a single result typed object in the first column
  
  @param <T>
  result value type
  @param sql
  sql statement
  @param args
  sql arguments
  @return single result object
  @since 3.1.0