import type { EventBus } from "../event-bus.ts";
import type { Extension, ExtensionAPI, ExtensionFactory, ExtensionRuntime } from "./types.ts";
export declare const EXTENSION_FACTORY_TIMEOUT_MS = 30000;
export declare class ExtensionFactoryTimeoutError extends Error {
}
/** Create the shared pre-bind state used by both file-backed and inline extension factories. */
export declare function createExtensionRuntime(): ExtensionRuntime;
export declare function createExtension(extensionPath: string, resolvedPath: string): Extension;
export declare function createExtensionAPI(extension: Extension, runtime: ExtensionRuntime, cwd: string, eventBus: EventBus, agentDir: string): ExtensionAPI;
export declare function runExtensionFactory(factory: ExtensionFactory, api: ExtensionAPI, timeoutMs?: number): Promise<void>;
export interface ExtensionLoadRuntimeSnapshot {
    pendingProviderRegistrations: ExtensionRuntime["pendingProviderRegistrations"];
    flagValues: Map<string, boolean | string>;
    providerRegistrations: ExtensionRuntime["providerRegistrations"];
}
export declare function snapshotExtensionLoadRuntime(runtime: ExtensionRuntime): ExtensionLoadRuntimeSnapshot;
export declare function restoreExtensionLoadRuntime(runtime: ExtensionRuntime, snapshot: ExtensionLoadRuntimeSnapshot): void;
export declare function loadExtensionFromFactory(factory: ExtensionFactory, cwd: string, eventBus: EventBus, runtime: ExtensionRuntime, extensionPath?: string, options?: {
    factoryTimeoutMs?: number;
    agentDir?: string;
}): Promise<Extension>;
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