def diskwarp_multi_fn(src_fn_list, res='first', extent='intersection', t_srs='first', r='cubic', verbose=True, outdir=None, dst_ndv=None):
    """Helper function for diskwarp of multiple input filenames
    """
    #Should implement proper error handling here
    if not iolib.fn_list_check(src_fn_list):
        sys.exit('Missing input file(s)')
    src_ds_list = [gdal.Open(fn, gdal.GA_ReadOnly) for fn in src_fn_list]
    return diskwarp_multi(src_ds_list, res, extent, t_srs, r, verbose=verbose, outdir=outdir, dst_ndv=dst_ndv)
Helper function for diskwarp of multiple input filenames