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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 fmt_dict_vals(dict_vals, shorten=True):
 """Returns list of key=val pairs formatted for inclusion in an informative text string. """

    items = dict_vals.items()
    if not items:
        return [fmt_val(None, shorten=shorten)]
    return ["%s=%s" % (k, fmt_val(v, shorten=shorten)) for k,v in items]