code: def get_default_score(self):
      return 0
  
file_path: scattertext/scattertext/termscoring/RankDifference.py
imports: import numpy
  import pandas
  from scipy.stats import rankdata
label_desc: Use image node_id 3 for calling the RankDifference obj's underlying member method code with example usage: obj.get_default_score() and returns: int