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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 constant_outfile_iterator(outfiles, infiles, arggroups):
 """Iterate over all output files."""

    assert len(infiles) == 1
    assert len(arggroups) == 1

    return ((outfile, infiles[0], arggroups[0]) for outfile in outfiles)