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: norma.m
    path of file: ./repos/kafbox/lib
    
    the code of the file until where you have to start completion: % Naive Online regularized Risk Minimization Algorithm
%
% J. Kivinen, A.J. Smola, and R.C. Williamson, "Online learning with
% kernels," IEEE Transactions on Signal Processing, vol. 52, no. 8,
% pp. 2165-2176, Aug. 2004, http://dx.doi.org/10.1109/TSP.2004.830991
%
% Remark: using squared loss function
%
% This file is part of the Kernel Adaptive Filtering Toolbox for Matlab.
% https://github.com/steven2358/kafbox/

classdef norma < kernel_adaptive_filter
    
    properties (GetAccess = 'public', SetAccess = 'private')
        tau = 500; % memory size (terms retained in truncation)
        lambda = 1E-2; % regularization parameter
        eta = .5; % learning rate
        tcoeff = 0; % 
    
function
%
% This file is part of the Kernel Adaptive Filtering Toolbox for Matlab.
% https://github.com/steven2358/kafbox/

classdef norma < kernel_adaptive_filter
    
    properties (GetAccess = 'public', SetAccess = 'private')
        tau = 500; % memory size (terms retained in truncation)
        lambda = 1E-2; % regularization parameter
        eta = .5; % learning rate
        tcoeff = 0; % learning rate coefficient: eta_t = eta * t^tcoeff
        kerneltype = 'gauss'; % kernel type
        kernelpar = 1; % kernel parameter
    end
    
    properties (GetAccess = 'public', SetAccess = 'private')
        dict = []; % dictionary
        alpha = []; % expansion coefficients
    end
    
    methods        
        function kaf = norma(parameters) % constructor
            if (nargin > 0) % copy valid parameters
                for fn = fieldnames(parameters)'
                    if ismember(fn,fieldnames(kaf))
                        kaf.(fn{1}) = parameters.(fn{1});
                    end