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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 _remove_duplicate_files(xs):
 """Remove files specified multiple times in a list. """

    seen = set([])
    out = []
    for x in xs:
        if x["path"] not in seen:
            out.append(x)
            seen.add(x["path"])
    return out