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: ImporterGroupSubjectFUN_MP_XLS.m
    path of file: ./repos/BRAPH-2/braph2/pipelines/functional multiplex
    
    the code of the file until where you have to start completion: classdef ImporterGroupSubjectFUN_MP_XLS < Importer
	%ImporterGroupSubjectFUN_MP_XLS imports a group of subjects with functional multiplex data from a series of XLS/XLSX file.
	% It is a subclass of <a href="matlab:help Importer">Importer</a>.
	%
	% ImporterGroupSubjectFUN_MP_XLS imports a group of subjects with functional 
	%  multiplex data from a series of XLS/XLSX files contained in a folder named 
	%  "GROUP_ID". All these files must be in the same folder; also, no other 
	%  files should be in the folder. Each file contains a table with each row 
	%  corresponding to a time serie and each column to a brain region. Files 
	%  should be labeled with the layer number indicated as, e.g., 
	%  "SUBJECT_ID.1.xlsx" and "SUBJECT_ID.2.xlsx".
	% The variables of interest are from another XLS/XLSX file named "GROUP_ID.vois.xlsx" 
	%  (if exisitng) consisting of the following columns: 
	%  Subject ID (column 1), covariates (subsequent columns). 
	%  The 1st row contains the headers, the 2nd row a string with the categorical
	%  variables of interest, and each subsequent row the values for each subject.
	%
	% The list of ImporterGroupSubjectFUN_MP_XLS properties is:
	%  <strong>1</strong> <strong>ELCLASS</strong> 	ELCLASS (constant, string) is the class of the % % % .
	%  <strong>2</strong> <strong>NAME</strong> 	NAME (constant, string) is the name of the FUN MP subject group importer from XLS/XLSX.
	%  <strong>3</strong> <strong>DESCRIPTION</strong> 	DESCRIPTION (constant, string) is the description of the FUN MP subject group importer from XLS/XLSX.
	%  <strong>4</strong> <strong>TEMPLATE</strong> 	TEMPLATE (parameter, item) is the template of the FUN MP subject group importer from XLS/XLSX.
	%  <strong>5</strong> <strong>ID</strong> 	ID (data, string) is a few-letter code for the FUN MP subject group importer from XLS/XLSX.
	%  <strong>6</strong> <strong>LABEL</strong> 	LABEL (metadata, string) is an extended label of the FUN MP subject group importer from XLS/XLSX.
	%  <strong>7</strong> <strong>NOTES</strong> 	NOTES (metadata, string) are some specific notes about the FUN MP subject group importer from XLS/XLSX.
	%  <strong>8</strong> <strong>TOSTRING</strong> 	TOSTRING (query, string) returns a string that represents the concrete element.
	%  <strong>9</strong> <strong>WAITBAR</strong> 	WAITBAR (gui, logical) detemines whether to show the waitbar.
	%  <strong>10</strong> <strong>DIRECTORY</strong> 	DIRECTORY (data, string) is th
    
function prop_default = getPropDefault(pointer)
			%GETPROPDEFAULT returns the default value of a property.
			%
			% DEFAULT = ImporterGroupSubjectFUN_MP_XLS.GETPROPDEFAULT(PROP) returns the default 
			%  value of the property PROP.
			%
			% DEFAULT = ImporterGroupSubjectFUN_MP_XLS.GETPROPDEFAULT(TAG) returns the default 
			%  value of the property with tag TAG.
			%
			% Alternative forms to call this method are (POINTER = PROP or TAG):
			%  DEFAULT = IM.GETPROPDEFAULT(POINTER) returns the default value of POINTER of IM.
			%  DEFAULT = Element.GETPROPDEFAULT(ImporterGroupSubjectFUN_MP_XLS, POINTER) returns the default value of POINTER of ImporterGroupSubjectFUN_MP_XLS.
			%  DEFAULT = IM.GETPROPDEFAULT(ImporterGroupSubjectFUN_MP_XLS, POINTER) returns the default value of POINTER of ImporterGroupSubjectFUN_MP_XLS.
			%
			% Note that the Element.GETPROPDEFAULT(IM) and Element.GETPROPDEFAULT('ImporterGroupSubjectFUN_MP_XLS')
			%  are less computationally efficient.
			%
			% See also getPropDefaultConditioned, getPropProp, getPropTag, getPropSettings, 
			%  getPropCategory, getPropFormat, getPropDescription, checkProp.
			
			prop = ImporterGroupSubjectFUN_MP_XLS.getPropProp(pointer);
			
			switch prop %CET: Computational Efficiency Trick
				case 10 % ImporterGroupSubjectFUN_MP_XLS.DIRECTORY
					prop_default = fileparts(which('test_braph2'));
				case 11 % ImporterGroupSubjectFUN_MP_XLS.GET_DIR
					prop_default = Format.getFormatDefault(8, ImporterGroupSubjectFUN_MP_XLS.getPropSettings(prop));
				case 12 % ImporterGroupSubjectFUN_MP_XLS.BA
					prop_default = Format.getFormatDefault(8, ImporterGroupSubjectFUN_MP_XLS.getPropSettings(prop));
				case 13 % ImporterGroupSubjectFUN_MP_XLS.GR
					prop_default = Group('SUB_CLASS', 'SubjectFUN_MP', 'SUB_DICT', IndexedDictionary('IT_CLASS', 'SubjectFUN_MP'));
				case 1 % ImporterGroupSubjectFUN_MP_XLS.ELCLASS
					prop_default = 'ImporterGroupSubjectFUN_MP_XLS';
				case 2 % ImporterGroupSubjectFUN_MP_XLS.NAME
					prop_default = 'ImporterGroupSubjectFUN_MP_XLS';
				case 3 % ImporterGroupSubjectFUN_MP_XLS.DESCRIPTION
					prop_default = 'ImporterGroupSubjectFUN_MP_XLS imports a group of subjects with functional multiplex data from a series of XLS/XLSX files and their covariates (optional) from another XLS/XLSX file.';
				case 4 % ImporterGroupSubjectFUN_MP_XLS.TEMPLATE
					prop_default = Format.getFormatDefault(8, ImporterGroupSubjectFUN_MP_XLS.getPropSettings(prop));
				case 5 % ImporterGroupSubjectFUN_MP_XLS.ID
					prop_default = 'ImporterGroupSubjectFUN_MP_XLS ID';
				case 6 % ImporterGroupSubjectFUN_MP_XLS.LABEL
					prop_default = 'ImporterGroupSubjectFUN_MP_XLS label';
				case 7 % ImporterGroupSubjectFUN_MP_XLS.NOTES
					prop_default = 'ImporterGroupSubjectFUN_MP_XLS notes';
				otherwise
					prop_default = getPropDefault@Importer(prop);
			end