You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: BMI.m
    path of file: ./repos/MARRMoT/BMI/lib
    
    the code of the file until where you have to start completion: classdef BMI < hgsetget
    % a superclass for models that want to implement the Basic Model
    % Interface (BMI, see http://csdms.colorado.edu/wiki/BMI_D
    
function initialize(obj,fileName)
            error(['This method is not defined in class ' mfilename('class')]);
        end
        function update(obj)
            error(['This method is not defined in class ' mfilename('class')]);
        end
        
        
        function update_until(obj,time)
            error(['This method is not defined in class ' mfilename('class')]);
        end
        function output = get_var_units(obj,long_var_name)
            error(['This method is not defined in class ' mfilename('class')]);
        end