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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 sort_members(tup, names):
 """Return two pairs of members, scalar and tuple members. The scalars will be sorted s.t. the unbound members are at the top. """

  scalars, tuples = partition(lambda x: not is_tuple_node(tup.member[x].value), names)
  unbound, bound = partition(lambda x: tup.member[x].value.is_unbound(), scalars)
  return usorted(unbound) + usorted(bound), usorted(tuples)