import type { ExtensionContext } from "@earendil-works/pi-coding-agent";
import type { AdapterState } from "../../adapter/activation/state.ts";
import type { createLazyCodexDiagnostics } from "../../diagnostics/lazy.ts";
import type { CodexPrewarmResult } from "../runtime.ts";
export declare function createCacheKeepaliveScheduler(state: AdapterState, startPrewarm: (ctx: ExtensionContext) => Promise<CodexPrewarmResult> | undefined, cancelPendingPrewarm: () => void, diagnostics: ReturnType<typeof createLazyCodexDiagnostics>): {
    arm: (ctx: ExtensionContext) => void;
    cancel: () => void;
};