SRM object in BrainIAK

I am trying to use SRM in brainiak.
I am looking at the doc of .fit() and it is written:
brainiak/srm.py at master · brainiak/brainiak · GitHub (line 222)

        X :  list of 2D arrays, element i has shape=[voxels_i, samples]
            Each element in the list contains the fMRI data of one subject.

So samples here is TRs?
Meaning X[i,j] is activity in voxel==i and TR==j?
Thanks?

Hi, can anyone please help?