code: def in6_getnsma(a):
      
  
      r = in6_and(a, inet_pton(socket.AF_INET6, '::ff:ffff'))
      r = in6_or(inet_pton(socket.AF_INET6, 'ff02::1:ff00:0'), r)
      return r
docs: Return link-local solicited-node multicast address for given
      address. Passed address must be provided in network format.
      Returned value is also in network format.