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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 meld(*values):
 """Return the repeated value, or the first value if there's only one. This is a convenience function, equivalent to calling getvalue(repeated(x)) to get x. This function skips over instances of None in values (None is not allowed in repeated variables). Examples: meld("foo", "bar") # => ListRepetition("foo", "bar") meld("foo", "foo") # => ListRepetition("foo", "foo") meld("foo", None) # => "foo" meld(None) # => None """

    values = [x for x in values if x is not None]
    if not values:
        return None

    result = repeated(*values)
    if isrepeating(result):
        return result

    return getvalue(result)