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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 stringify(metrics_headers=()):
 """Convert the provided metrics headers to a string. Iterate over the metrics headers (a dictionary, usually ordered) and return a properly-formatted space-separated string (e.g. foo/1.2.3 bar/3.14.159). """

    metrics_headers = collections.OrderedDict(metrics_headers)
    return ' '.join(['%s/%s' % (k, v) for k, v in metrics_headers.items()])