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: mj_initbus.m
    path of file: ./repos/mujoco-simulink-blockset/blocks
    
    the code of the file until where you have to start completion: function [a,b,c,d,e] = mj_initbus(xmlPath)
% Copyright 2022-2023 The MathWorks, Inc.
% Lets just be on safe side and run mj_initbus_mex in a separate
% process. It calls glfw functions which work best in a main thread of
% a separate process.

    
function [a,b,c,d,e] = mj_initbus(xmlPath)
% Copyright 2022-2023 The MathWorks, Inc.
% Lets just be on safe side and run mj_initbus_mex in a separate
% process. It calls glfw functions which work best in a main thread of
% a separate process.
persistent mh
if ~(isa(mh,'matlab.mex.MexHost') && isvalid(mh))
    mh = mexhost;
end