import type { DiagnosticResult } from "./types.js";
/**
 * Whether the experimental RSC surface is opted into for this project.
 *
 * The RSC endpoint probes only mean something when RSC is on, so doctor uses
 * this to skip them rather than warn about endpoints the server never serves.
 */
export declare function isRscDiagnosticsEnabled(projectDir?: string): Promise<boolean>;
export declare function checkRSCFlag(projectDir?: string): Promise<DiagnosticResult>;
export declare function checkRSCEndpoints(port?: number): Promise<DiagnosticResult[]>;
export declare function checkRSCCounters(port?: number): Promise<DiagnosticResult>;
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