Package ‘traj’ - Supervised or unsupervised clustering?

I used R "traj" package to create two clusters based on longitudinal trajectories (repeated measurements of a single parameter over time). Can anyone tell me please if this was a unsupervised cluster analysis? I know that supervised clustering means that we give some "input" so the clusters are formed with some specifications. I defined that I wanted 2 clusters. Does this mean that the clustering was supervised?