/**
 * gRPC contract extractor for NEXUS (stub implementation).
 *
 * Detects `.proto` files in the project and extracts gRPC service method contracts.
 * Current implementation is minimal — projects without `.proto` files return empty.
 *
 * Acceptance: the extractor exists and is wire-ready; finding actual gRPC contracts
 * is deferred to a follow-up task if needed.
 *
 * @task T1065 — Contract Registry
 */
import type { GrpcContract } from '@cleocode/contracts';
/**
 * Extract all gRPC contracts from a project's `.proto` files.
 *
 * Stub implementation: returns empty array on projects without `.proto` files.
 * Full implementation would parse `.proto` syntax and extract service definitions.
 *
 * @param projectId - Project identifier from registry
 * @param projectRoot - Root directory of the project
 * @returns Promise resolving to array of GrpcContract objects (empty if no .proto files)
 */
export declare function extractGrpcContracts(_projectId: string, _projectRoot: string): Promise<GrpcContract[]>;
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