code: def read_broadcoverage_diagnostic(dir_path):
      df = pyarrow.json.read_json(
          os.path.join(dir_path, "AX-b.jsonl")
      ).to_pandas()
      return df
  
imports: import os
  import shutil
  import argparse
  import zipfile
  import json
  import pandas
  import pyarrow
  import pyarrow.json
  from gluonnlp.utils.misc import download, load_checksum_stats
  from gluonnlp.base import get_data_home_dir
  from gluonnlp.data.tokenizers import WhitespaceTokenizer
label_desc: Use image node_id 23 for calling a global function with example usage: read_broadcoverage_diagnostic(dir_path) and returns: df