/**
 * Profiler Middleware
 * Enables request profiling when ENABLE_PROFILER environment variable is set
 */
import type { Middleware } from '../../src/middleware/MiddlewareStack';
/**
 * ProfilerMiddleware wraps request execution with performance profiling
 * Enabled via ENABLE_PROFILER=true environment variable
 * Attaches profiling report to response headers
 */
export declare const ProfilerMiddleware: Middleware;
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