text: """ lambdata_jgrxnde9701 - a collection of data science helper functions """
  
  # sample codes
  import numpy as np
  import pandas as pd
  
  # sample datasets
  ONES = pd.DataFrame(np.ones(10))
  ZEROS = pd.DataFrame(np.zeros(50))
  
  
  # sample functions
  def increment(x):
      return (x + 1)
  