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: MultilayerWD.m
    path of file: ./repos/BRAPH-2/braph2/graphs
    
    the code of the file until where you have to start completion: classdef MultilayerWD < Graph
	%MultilayerWD is a multilayer weighted directed graph.
	% It is a subclass of <a href="matlab:help Graph">Graph</a>.
	%
	% In a multilayer weighted directed (WD) graph, layers could have different number 
	% of nodes with within-layer weighted directed edges, associated with a real
	% number between 0 and 1 and indicating the strength of the connection.
	% The connectivit
    
function prop_list = getProps(category)
			%GETPROPS returns the property list of multilayer weighted directed graph.
			%
			% PROPS = MultilayerWD.GETPROPS() returns the property list of multilayer weighted directed graph
			%  as a row vector.
			%
			% PROPS = MultilayerWD.GETPROPS(CATEGORY) returns the property list 
			%  of category CATEGORY.
			%
			% Alternative forms to call this method are:
			%  PROPS = G.GETPROPS([CATEGORY]) returns the property list of the multilayer weighted directed graph G.
			%  PROPS = Element.GETPROPS(G[, CATEGORY]) returns the property list of 'G'.
			%  PROPS = Element.GETPROPS('MultilayerWD'[, CATEGORY]) returns the property list of 'MultilayerWD'.
			%
			% Note that the Element.GETPROPS(G) and Element.GETPROPS('MultilayerWD')
			%  are less computationally efficient.
			%
			% See also getPropNumber, Category.
			
			%CET: Computational Efficiency Trick
			
			if nargin == 0
				prop_list = [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41];
				return
			end