code: private void createFunction(String name, GeometryFunction function) {
  		try {
  			Function.create(getGeoPackage().getConnection().getConnection(),
  					name, function);
  		} catch (SQLException e) {
  			log.log(Level.SEVERE, "Failed to create function: " + name, e);
  		}
  	}
docs: Create the function for the connection
  
  @param name
  function name
  @param function
  geometry function