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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def copy_target_dir(cls, orig_dir, dest_dir, roi_baseline, extracopy):
 """ Create and populate directoris for target analysis """

        try:
            os.makedirs(dest_dir)
        except OSError:
            pass

        copyfiles = ['%s.fits' % roi_baseline,
                     '%s.npy' % roi_baseline,
                     '%s_*.xml' % roi_baseline] + cls.copyfiles
        if isinstance(extracopy, list):
            copyfiles += extracopy

        cls.copy_analysis_files(orig_dir, dest_dir, copyfiles)