`KalshiFetcher.resetCache()` not exposed on `KalshiExchange` or either SDK — series cache cannot be force-invalidated

[realfishsam]

Gap type

Core → SDK (missing exposure)

Summary

KalshiFetcher has a public resetCache() method that clears its internal series/event cache. Neither KalshiExchange nor either SDK exposes this, so callers cannot force a cache refresh without re-instantiating the exchange.

Core

core/src/exchanges/kalshi/fetcher.ts:188

resetCache(): void {
    this.cachedEvents = null;
    this.cachedSeriesMap = null;
    this.lastCacheTime = 0;
}

KalshiExchange (core/src/exchanges/kalshi/index.ts) does not delegate this method.

TypeScript SDK

sdks/typescript/pmxt/client.ts — Kalshi class has no resetCache() method.

Python SDK

sdks/python/pmxt/_exchanges.py — Kalshi class has no reset_cache() method.

Impact

The Kalshi fetcher caches events and series to reduce API calls. If stale cache causes incorrect market data, the only workaround is to recreate the exchange instance. Exposing resetCache() through the exchange class and sidecar route would let callers recover without reconnection overhead.