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: printSolver.m
    path of file: ./repos/chebfun/@chebguiExporterPDE
    
    the code of the file until where you have to start completion: function printSolver(fid, expInfo)
%PRINTSOLVER   Print commands for solving problems.
%
% Calling sequence:
%   PRINTPOSTSOLVER(FID, EXPINFO)
% where
%   FID:        ID of a file-writing stream.
%   EXPINFO:    Struct containing information for printing the problem.

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

% Extract information from the EXPINFO struct:
allVarString = expInfo.allVarString;
pdeSolver = expInfo.pdeSolver;
indVarName = expInfo.indVarName;
sol0 = expInfo.sol0;

% Add extra whitespace around commas in allVarString
allVarString = strrep(allVarString,',',', ');

    
function printSolver(fid, expInfo)
%PRINTSOLVER   Print commands for solving problems.
%
% Calling sequence:
%   PRINTPOSTSOLVER(FID, EXPINFO)
% where
%   FID:        ID of a file-writing stream.
%   EXPINFO:    Struct containing information for printing the problem.

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

% Extract information from the EXPINFO struct:
allVarString = expInfo.allVarString;
pdeSolver = expInfo.pdeSolver;
indVarName = expInfo.indVarName;
sol0 = expInfo.sol0;

% Add extra whitespace around commas in allVarString
allVarString = strrep(allVarString,',',', ');

% Print commands for solving the problem:
fprintf(fid, '\n%%%% Call %s to solve the problem.\n', pdeSolver);
fprintf(fid, '[%s, %s] = %s(pdefun, %s, %s, bc, opts);\n', indVarName{2}, ...
    allVarString, pdeSolver, indVarName{2}, sol0);

end