Describe the bug

Calling fast_PLDA_scoring. Got error in line 727, in fast_PLDA_scoring
enroll_ctr = enroll_ctr.mean_stat_per_model()
AttributeError: 'StatObject_SB' object has no attribute 'mean_stat_per_model'. Did you mean: 'sum_stat_per_model'?

Expected behaviour

Code run without Exception

To Reproduce

There is no mean_stat_per_model in the current PLDA_LDA.py.

Environment Details

Any recent version of speechbrain.

Relevant Log Output

File "...PLDA_LDA.py", line 727, in fast_PLDA_scoring
    enroll_ctr = enroll_ctr.mean_stat_per_model()
AttributeError: 'StatObject_SB' object has no attribute 'mean_stat_per_model'. Did you mean: 'sum_stat_per_model'?

Additional Context

No response