code: def get_membind():
      
      bitmask = libnuma.numa_get_membind()
      nodemask = nodemask_t()
      libnuma.copy_bitmask_to_nodemask(bitmask, byref(nodemask))
      libnuma.numa_bitmask_free(bitmask)
      return numa_nodemask_to_set(nodemask)
docs: Returns  the  mask of nodes from which memory can currently be allocated.
  
      @return: node mask
      @rtype: C{set}