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: AssortOutIn.m
    path of file: ./repos/BRAPH-2/braph2/measures
    
    the code of the file until where you have to start completion: classdef AssortOutIn < Measure
	%AssortOutIn is the graph Out-In-Assortativity.
	% It is a subclass of <a href="matlab:help Measure">Measure</a>.
	%
	% The Out-In-Assortativity coefficient (AssortOutIn) of a graph is the correlation coefficient between 
	%   the degrees/strengths of all nodes on two opposite ends of an edge within a layer. 
	% The corresponding coefficient for directed and weighted networks is calculated by 
	%   using the weighted and directed variants of in-out-degree/in-out-strength.
	%
	% The list of AssortOutIn properties is:
	%  <strong>1</strong> <strong>ELCLASS</strong> 	ELCLASS (constant, string) is the class of the Out-In-Assortativity.
	%  <strong>2</strong> <strong>NAME</strong> 	NAME (constant, string) is the name of the Out-In-Assortativity.
	%  <strong>3</strong> <strong>DESCRIPTION</strong> 	DESCRIPTION (constant, string) is the description of the Out-In-Assortativity.
	%  <strong>4</strong> <strong>TEMPLATE</strong> 	TEMPLATE (parameter, item) is the template of the Out-In-Assortativity.
	%  <strong>5</strong> <strong>ID</strong> 	ID (data, string) is a few-letter code of the Out-In-Assortativity.
	%  <strong>6</strong> <strong>LABEL</strong> 	LABEL (metadata, string) is an extended label of the Out-In-Assortativity.
	%  <strong>7</strong> <strong>NOTES</strong> 	NOTES (metadata, string) are some specific notes about the Out-In-Assortativity.
	%  <strong>8</strong> <strong>TOSTRING</strong> 	TOSTRING (query, string) returns a string that represents the concrete element.
	%  <strong>9</strong> <strong>SHAPE</strong> 	SHAPE (constant, scalar) is the measure shape Measure.GLOBAL.
	%  <strong>10</strong> <strong>SCOPE</strong> 	SCOPE (constant, scalar) is the measure scope Measure.UNILAYER.
	%  <strong>11</strong> <strong>PARAMETRICITY</strong> 	PARAMET
    
function prop_check = checkProp(pointer, value)
			%CHECKPROP checks whether a value has the correct format/error.
			%
			% CHECK = M.CHECKPROP(POINTER, VALUE) checks whether
			%  VALUE is an acceptable value for the format of the property
			%  POINTER (POINTER = PROP or TAG).
			% 
			% Alternative forms to call this method are (POINTER = PROP or TAG):
			%  CHECK = M.CHECKPROP(POINTER, VALUE) checks VALUE format for PROP of M.
			%  CHECK = Element.CHECKPROP(AssortOutIn, PROP, VALUE) checks VALUE format for PROP of AssortOutIn.
			%  CHECK = M.CHECKPROP(AssortOutIn, PROP, VALUE) checks VALUE format for PROP of AssortOutIn.
			% 
			% M.CHECKPROP(POINTER, VALUE) throws an error if VALUE is
			%  NOT an acceptable value for the format of the property POINTER.
			%  Error id: BRAPH2:AssortOutIn:WrongInput
			% 
			% Alternative forms to call this method are (POINTER = PROP or TAG):
			%  M.CHECKPROP(POINTER, VALUE) throws error if VALUE has not a valid format for PROP of M.
			%   Error id: BRAPH2:AssortOutIn:WrongInput
			%  Element.CHECKPROP(AssortOutIn, PROP, VALUE) throws error if VALUE has not a valid format for PROP of AssortOutIn.
			%   Error id: BRAPH2:AssortOutIn:WrongInput
			%  M.CHECKPROP(AssortOutIn, PROP, VALUE) throws error if VALUE has not a valid format for PROP of AssortOutIn.
			%   Error id: BRAPH2:AssortOutIn:WrongInput]
			% 
			% Note that the Element.CHECKPROP(M) and Element.CHECKPROP('AssortOutIn')
			%  are less computationally efficient.
			%
			% See also Format, getPropProp, getPropTag, getPropSettings,
			% getPropCategory, getPropFormat, getPropDescription, getPropDefault.
			
			prop = AssortOutIn.getPropProp(pointer);
			
			switch prop
				case 4 % AssortOutIn.TEMPLATE
					check = Format.checkFormat(8, value, AssortOutIn.getPropSettings(prop));
				otherwise
					if prop <= 15
						check = checkProp@Measure(prop, value);
					end