Module rate_limit 

Token bucket rate limiter for cloud API calls.

Prevents hitting provider rate limits (IBM: 5 jobs/min, AWS: 10 req/s, etc.) by tracking token consumption per backend. The token bucket algorithm smooths bursty traffic while respecting sustained-rate limits.

Structs

RateLimiter

Per-provider token-bucket rate limiter.

TokenBucket

A token bucket: accumulates capacity tokens at refill_rate tokens/second.