wallacegsouza

import sys, os, argparse, fnmatch, json, csv
from collections import defaultdict

# Optional plotting (enabled via --chart). We import lazily in render_charts().
# Backend will be set to 'Agg' for headless environments.

try:
    import tiktoken
except ImportError:
    print("Please install tiktoken first: pip install tiktoken", file=sys.stderr); sys.exit(1)