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: MeasureGroupBrainPF.m
    path of file: ./repos/BRAPH-2/braph2/src/analysis
    
    the code of the file until where you have to start completion: classdef MeasureGroupBrainPF < BrainAtlasPF
	%MeasureGroupBrainPF is a plot of a measure group brain.
	% It is a subclass of <a href="matlab:help BrainAtlasPF">BrainAtlasPF</a>.
	%
	% A Panel Figure for a Brain Measure of Analyze Group (MeasureGroupBrainPF) manages the plot of the measure
	%  ploted over the brain.  
	% MeasureGroupBrainPF utilizes the surface created from BrainAtlasPF to integrate 
	%  the meaure into the brain regions.
	%
	% The list of MeasureGroupBrainPF 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 panel figure for measure group brain.
	%  <strong>3</strong> <strong>DESCRIPTION</strong> 	DESCRIPTION (constant, string) is the description of the panel figure for measure group brain.
	%  <strong>4</strong> <strong>TEMPLATE</strong> 	TEMPLATE (parameter, item) is the template of the panel figure for measure group brain.
	%  <strong>5</strong> <strong>ID</strong> 	ID (data, string) is a few-letter code for the p
    
function check_out = existsProp(prop)
			%EXISTSPROP checks whether property exists in panel figure for measure group brain/error.
			%
			% CHECK = MeasureGroupBrainPF.EXISTSPROP(PROP) checks whether the property PROP exists.
			%
			% Alternative forms to call this method are:
			%  CHECK = PF.EXISTSPROP(PROP) checks whether PROP exists for PF.
			%  CHECK = Element.EXISTSPROP(PF, PROP) checks whether PROP exists for PF.
			%  CHECK = Element.EXISTSPROP(MeasureGroupBrainPF, PROP) checks whether PROP exists for MeasureGroupBrainPF.
			%
			% Element.EXISTSPROP(PROP) throws an error if the PROP does NOT exist.
			%  Error id: [BRAPH2:MeasureGroupBrainPF:WrongInput]
			%
			% Alternative forms to call this method are:
			%  PF.EXISTSPROP(PROP) throws error if PROP does NOT exist for PF.
			%   Error id: [BRAPH2:MeasureGroupBrainPF:WrongInput]
			%  Element.EXISTSPROP(PF, PROP) throws error if PROP does NOT exist for PF.
			%   Error id: [BRAPH2:MeasureGroupBrainPF:WrongInput]
			%  Element.EXISTSPROP(MeasureGroupBrainPF, PROP) throws error if PROP does NOT exist for MeasureGroupBrainPF.
			%   Error id: [BRAPH2:MeasureGroupBrainPF:WrongInput]
			%
			% Note that the Element.EXISTSPROP(PF) and Element.EXISTSPROP('MeasureGroupBrainPF')
			%  are less computationally efficient.
			%
			% See also getProps, existsTag.
			
			check = prop >= 1 && prop <= 47 && round(prop) == prop; %CET: Computational Efficiency Trick
			
			if nargout == 1
				check_out = check;
			elseif ~check
				error( ...
					['BRAPH2' ':MeasureGroupBrainPF:' 'WrongInput'], ...
					['BRAPH2' ':MeasureGroupBrainPF:' 'WrongInput' '\n' ...
					'The value ' tostring(prop, 100, ' ...') ' is not a valid prop for MeasureGroupBrainPF.'] ...
					)
			end