function with two inputs, one queue, and one element in matlab

main.m
function [out_queue] = add_to_queue(in_queue, elem)
% This function adds an element to the end of the given queue
% Inputs:
%   in_queue: the input queue
%   elem: the element to be added to the queue
% Outputs:
%   out_queue: the updated queue with the new element

% Append the element to the end of the queue
out_queue = [in_queue, elem];
end
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