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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 _sortObjects(orderby='created', **kwargs):
 """Sorts lists of objects and combines them into a single list"""

    o = []
    
    for m in kwargs.values():
        for l in iter(m):
            o.append(l)
    o = list(set(o))
    sortfunc = _sortByCreated if orderby == 'created' else _sortByModified
    if six.PY2:
        o.sort(sortfunc)
    else:
        o.sort(key=functools.cmp_to_key(sortfunc))

    return o