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: Multiple.m
    path of file: ./repos/Image-Text-Embedding/matlab/+dagnn
    
    the code of the file until where you have to start completion: classdef Multiple < dagnn.ElementWise
  properties
    dim = 3
  end

  properties (Transient)
    inputSizes = {}
  end

  methods
    function outputs = forward(obj, inputs, params)
      outputs{1}
    
function rfs = getReceptiveFields(obj)
      numInputs = numel(obj.net.layers(obj.layerIndex).inputs) ;
      if obj.dim == 3 || obj.dim == 4
        rfs = getReceptiveFields@dagnn.ElementWise(obj) ;
        rfs = repmat(rfs, numInputs, 1) ;
      else
        for i = 1:numInputs
          rfs(i,1).size = [NaN NaN] ;
          rfs(i,1).stride = [NaN NaN] ;
          rfs(i,1).offset = [NaN NaN] ;
        end