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: spinw.m
    path of file: ./repos/spinw/swfiles/@spinw
    
    the code of the file until where you have to start completion: classdef spinw < handle & matlab.mixin.SetGet
    % class to store and solve magnetic Hamiltonians
    %
    % ### Syntax
    
    
function addlistenermulti(obj, chgField)
            % create the corresponding listeners to each cache subfield
            
            switch chgField
                case 1
                    % add listener to lattice and unit_cell fields
                    obj.propl(1) = addlistener(obj,'lattice',  'PostSet',@(evnt,src)obj.clearcache(1));
                    obj.propl(2) = addlistener(obj,'unit_cell','PostSet',@(evnt,src)obj.clearcache(1));
                case 2
                    % add listener to lattice, unit_cell and coupling fields
                    obj.propl(3) = addlistener(obj,'lattice',  'PostSet',@(evnt,src)obj.clearcache(2));
                    obj.propl(4) = addlistener(obj,'unit_cell','PostSet',@(evnt,src)obj.clearcache(2));
                    obj.propl(5) = addlistener(obj,'coupling', 'PostSet',@(evnt,src)obj.clearcache(2));
            end