/**
 * Go module index registry adapter for source-sync.
 *
 * Owns: Go module index feed sync and go-specific cursor management.
 */
import type { SourceDefinition } from "../../../../types.js";
import type { SourceSyncContext, SourceSyncSourceState } from "../types.js";
/**
 * Syncs the Go module index using the official JSON-lines feed
 * (`index.golang.org/index`) with a timestamp cursor.
 */
export declare function syncGoRegistrySource(source: SourceDefinition, context: SourceSyncContext): Promise<SourceSyncSourceState>;