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: circshift_comp.m
    path of file: ./repos/MATL/compatibility
    
    the code of the file until where you have to start completion: function y = circshift(varargin)
% Implements three-input version. It does so by using an equivalent
% two-input call where the second input is a vector
%   Also, in the two-input version allows vector to have more elements than

    
function y = circshift(varargin)
% Implements three-input version. It does so by using an equivalent
% two-input call where the second input is a vector
%   Also, in the two-input version allows vector to have more elements than
% the number of dimensions of input. The extra elements do nothing (those dimensions are singleton),
% so they are simply removed
if nargin<3
    v = varargin{2};
    if numel(v) > ndims(varargin{1})
        v = v(1:ndims(varargin{1}));
    end