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: fred.m
    path of file: ./repos/chebfun/@chebfun
    
    the code of the file until where you have to start completion: function F = fred(k, v, onevar)
%FRED   Compute the Fredholm integral with a specific kernel.
%
%   F = FRED(K, V) computes the Fredholm integral with kernel K:
%
%      (F*v)(x) = int( K(x,y)*v(y), y=a..b ),
%
%   where [a b] = domain(V). The kernel function K(x,y) should be smooth for
%   best results.
%
%   K must be defined as a function of two inputs X and Y. These may be scalar
%   and vector, or they may be matrices defined by NDGRID to represent a tensor
%   product of points in DxD.
%
%   FRED(K, V, 'onevar') will avoid calling K with tensor product matrices X and
%   Y. Instead, the kernel function K should interpret a call K(x) as a vector x

    
function F = fred(k, v, onevar)
%FRED   Compute the Fredholm integral with a specific kernel.
%
%   F = FRED(K, V) computes the Fredholm integral with kernel K:
%
%      (F*v)(x) = int( K(x,y)*v(y), y=a..b ),
%
%   where [a b] = domain(V). The kernel function K(x,y) should be smooth for
%   best results.
%
%   K must be defined as a function of two inputs X and Y. These may be scalar
%   and vector, or they may be matrices defined by NDGRID to represent a tensor
%   product of points in DxD.
%
%   FRED(K, V, 'onevar') will avoid calling K with tensor product matrices X and
%   Y. Instead, the kernel function K should interpret a call K(x) as a vector x
%   defining the tensor product grid. This format allows a separable or sparse
%   representation for increased efficiency in some cases.
%
% See also CHEBFUN/VOLT, CHEBOP.

% Copyright 2017 by The University of Oxford and The Chebfun Developers.
% See http://www.chebfun.org/ for Chebfun information.

    % Inputs in correct order. Let this slide...
    if ( isa(k, 'chebfun') )
        tmp = v;
        v = k;
        k = tmp;
    end