code: def convert(name):
      # Rename columns to underscore
      # Code via SO https://stackoverflow.com/questions/1175208/elegant-python-function-to-convert-camelcase-to-snake-case
      s1 = re.sub("(.)([A-Z][a-z]+)", r"\1_\2", name)
      return re.sub("([a-z0-9])([A-Z])", r"\1_\2", s1).lower()
  
file_path: featuretools/featuretools/demo/flight.py
imports: import math
  import re
  import pandas
  from tqdm import tqdm
  from woodwork.logical_types import Boolean, Categorical, Ordinal
  import featuretools
label_desc: Use image node_id 7 for calling a global function with example usage: convert(name) and returns: re