{
  "error": {
    "code": "rate_limit_exceeded",
    "message": "Rate limit exceeded. Please retry after X seconds."
  }
}

import time
from openai import RateLimitError

def call_with_retry(func, max_retries=3):
    """Call a function with exponential backoff on rate limit errors."""
    for attempt in range(max_retries):
        try:
            return func()
        except RateLimitError:
            if attempt == max_retries - 1:
                raise
            wait_time = 2 ** attempt  # 1, 2, 4 seconds
            time.sleep(wait_time)
    raise Exception("Max retries exceeded")

# Usage
response = call_with_retry(
    lambda: client.chat.completions.create(
        model="meta-llama/Llama-3.3-70B-Instruct",
        messages=[{"role": "user", "content": "Hello!"}]
    )
)