code: def _magnitude(sparse_vec):
      return np.sqrt(np.sum(sparse_vec.data**2))
  
file_path: gensim/gensim/topic_coherence/indirect_confirmation_measure.py
imports: import itertools
  import logging
  import numpy
  import scipy.sparse
  from gensim.topic_coherence.direct_confirmation_measure import aggregate_segment_sims, log_ratio_measure
label_desc: Use image node_id 5 for calling a global function with example usage: _magnitude(sparse_vec) and returns: np