code: def drop_unrequired_fields(
      df, required_fields=["prompt", "completion"]
  ):
      for column in df.columns:
          if column not in required_fields:
              df = df.drop(column, axis=1)
      return df
  
imports: import argparse
  import math
  import os
  import pathlib
  from collections import Counter
  import numpy
  import pandas
label_desc: Use image node_id 14 for calling a global function with example usage: drop_unrequired_fields(df, required_fields) and returns: df