code: func (inspector *Inspector) Has(chunkAddresses []storage.Address) []HasInfo {
  	results := make([]HasInfo, 0)
  	for _, addr := range chunkAddresses {
  		res := HasInfo{}
  		res.Addr = addr.String()
  		res.Has = inspector.netStore.Has(context.Background(), addr)
  		results = append(results, res)
  	}
  	return results
  }
docs: // Has checks whether each chunk address is present in the underlying datastore,
  // the bool in the returned structs indicates if the underlying datastore has
  // the chunk stored with the given address (true), or not (false)