code: func GenerateLine(nodes int, spacing time.Duration) [][]time.Duration {
  	truth := make([][]time.Duration, nodes)
  	for i := range truth {
  		truth[i] = make([]time.Duration, nodes)
  	}
  
  	for i := 0; i < nodes; i++ {
  		for j := i + 1; j < nodes; j++ {
  			rtt := time.Duration(j-i) * spacing
  			truth[i][j], truth[j][i] = rtt, rtt
  		}
  	}
  	return truth
  }
docs: // GenerateLine returns a truth matrix as if all the nodes are in a straight linke
  // with the given spacing between them.