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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 convert(profiling_data, outputfile):
 """convert `profiling_data` to calltree format and dump it to `outputfile` `profiling_data` can either be: - a pstats.Stats instance - the filename of a pstats.Stats dump - the result of a call to cProfile.Profile.getstats() `outputfile` can either be: - a file() instance open in write mode - a filename """

    converter = CalltreeConverter(profiling_data)
    if is_basestring(outputfile):
        with open(outputfile, "w") as f:
            converter.output(f)
    else:
        converter.output(outputfile)