code: func newBatchSpendReporter() *batchSpendReporter {
  	return &batchSpendReporter{
  		requests:    make(map[wire.OutPoint][]*GetUtxoRequest),
  		initialTxns: make(map[wire.OutPoint]*SpendReport),
  		outpoints:   make(map[wire.OutPoint][]byte),
  	}
  }
docs: // newBatchSpendReporter instantiates a fresh batchSpendReporter.