How do I make sure I get the same clusters everytime I run the following code:

```
using Clustering
using Random
# make a random dataset with 1000 random 5-dimensional points
X = rand(MersenneTwister(10),5, 1000)
# cluster X into 20 clusters using K-means
R = kmeans(X, 20; maxiter=200, display=:iter)
@assert nclusters(R) == 20 # verify the number of clusters
a = assignments(R) # get the assignments of points to clusters
c = counts(R) # get the cluster sizes
M = R.centers # get the cluster centers
```