code: def get_default_distance(self):
      return CosineSimilarity()
  
file_path: pytorch-metric-learning/src/pytorch_metric_learning/regularizers/sparse_centers_regularizer.py
imports: import torch
  from ..distances import CosineSimilarity
  from ..reducers import DivisorReducer
  from ..utils import common_functions
  from .base_regularizer import BaseRegularizer
label_desc: Use image node_id 5 for calling the SparseCentersRegularizer obj's underlying member method code with example usage: obj.get_default_distance() and returns: CosineSimilarity