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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 unique_everseen(iterable, filterfalse_=itertools.filterfalse):

 """Unique elements, preserving order."""

    # Itertools recipes:
    # https://docs.python.org/3/library/itertools.html#itertools-recipes
    seen = set()
    seen_add = seen.add
    for element in filterfalse_(seen.__contains__, iterable):
        seen_add(element)
        yield element