output

classdef UnitDelayNondirect < matlab.System
% UnitDelayNondirect Delay input by one time step

properties(DiscreteState)
        State
    end

    methods(Access = protected)
        function resetImpl(obj)
            obj.State = 0; % Initialize states
        end
        function y = outputImpl(obj, ~)
            y = obj.State; % Output current state
 
        end
        function updateImpl(obj,u)
            obj.State = u; % Update state with input
        end
    end
end

a = UnitDelayNondirect();
out = a(1);

outCurrent = output(a);