code: def renameDatasetColumn(dataset):
      col_names = dataset.column_names
      for cols in col_names:
          if "-" in cols:
              dataset = dataset.rename_column(
                  cols, cols.replace("-", "_")
              )
      return dataset
  
file_path: promptsource/promptsource/utils.py
imports: import os
  import datasets
  import requests
  from promptsource import DEFAULT_PROMPTSOURCE_CACHE_HOME
  from promptsource.templates import INCLUDED_USERS
label_desc: Use image node_id 2 for calling a global function with example usage: renameDatasetColumn(dataset) and returns: dataset