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: Conv.m
    path of file: ./repos/refinenet/libs/matconvnet/matlab/+dagnn
    
    the code of the file until where you have to start completion: classdef Conv < dagnn.Filter
  properties
    size = [0 0
    
function obj = Conv(varargin)
      obj.load(varargin) ;
      % normalize field by implicitly calling setters defined in
      % dagnn.Filter and here
      obj.size = obj.size ;
      obj.stride = obj.stride ;
      obj.pad = obj.pad ;
    end