add typing for attributes

[Borda]

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[codecov]

Codecov Report

Merging #314 (ac68eff) into master (17130f1) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #314   +/-   ##
=======================================
  Coverage   96.38%   96.39%           
=======================================
  Files         112      112           
  Lines        3600     3657   +57     
=======================================
+ Hits         3470     3525   +55     
- Misses        130      132    +2     

Flag	Coverage Δ
Linux	76.34% <100.00%> (+0.37%)	⬆️
Windows	76.34% <100.00%> (+0.37%)	⬆️
cpu	96.39% <100.00%> (+0.05%)	⬆️
gpu	?
macOS	96.39% <100.00%> (+0.05%)	⬆️
pytest	96.39% <100.00%> (+<0.01%)	⬆️
python3.6	95.54% <100.00%> (?)
python3.8	96.39% <100.00%> (+0.05%)	⬆️
python3.9	96.28% <100.00%> (+0.05%)	⬆️
torch1.3.1	95.54% <100.00%> (?)
torch1.4.0	95.62% <100.00%> (+0.06%)	⬆️
torch1.9.0	96.28% <100.00%> (+0.05%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
torchmetrics/classification/stat_scores.py	98.36% <ø> (ø)
...metrics/functional/classification/kl_divergence.py	89.28% <ø> (ø)
torchmetrics/audio/si_sdr.py	100.00% <100.00%> (ø)
torchmetrics/audio/si_snr.py	100.00% <100.00%> (ø)
torchmetrics/audio/snr.py	100.00% <100.00%> (ø)
torchmetrics/average.py	96.15% <100.00%> (+0.32%)	⬆️
torchmetrics/classification/__init__.py	100.00% <100.00%> (ø)
torchmetrics/classification/accuracy.py	93.22% <100.00%> (+0.23%)	⬆️
torchmetrics/classification/auc.py	100.00% <100.00%> (ø)
torchmetrics/classification/auroc.py	91.30% <100.00%> (+0.39%)	⬆️
... and 25 more

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