code: func NewBlockEvent(block *cb.Block, sourceURL string) *connection.Event {
  	return connection.NewEvent(
  		&pb.DeliverResponse{
  			Type: &pb.DeliverResponse_Block{
  				Block: block,
  			},
  		}, sourceURL,
  	)
  }
docs: // NewBlockEvent returns a new mock block event initialized with the given block