code: def test_LabelAggregate_repr():
      label_aggregate = LabelAggregate(
          win_length=512, hop_length=128, center=True
      )
      print(label_aggregate)
  
imports: import pytest
  import torch
  from espnet2.layers.label_aggregation import LabelAggregate
label_desc: Use image node_id 2 for calling a global function with example usage: test_LabelAggregate_repr() without return types