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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 ReconcileShadow(self, store_type):
 """Verify that entries that claim to use shadow files have a shadow entry. If the entries of the non-shadowed file indicate that a shadow file is used, check that there is actually an entry for that file in shadow. Args: store_type: The type of password store that should be used (e.g. /etc/shadow or /etc/gshadow) """

    for k, v in iteritems(self.entry):
      if v.pw_entry.store == store_type:
        shadow_entry = self.shadow.get(k)
        if shadow_entry is not None:
          v.pw_entry = shadow_entry
        else:
          v.pw_entry.store = "UNKNOWN"