//#region src/instrumentation.d.ts
export type AsyncContext<T> = {
  getStore(): T | undefined;
  run<R>(store: T, fn: () => R): R;
};
export type TimingKind = "db" | "page" | "route" | "rsc" | "view" | "cache";
export type TimingEvent = {
  kind: TimingKind;
  label: string;
  durationMs: number;
  detail?: string;
};
export type RequestTrace = {
  id: string;
  startedAt: number;
  events: TimingEvent[];
  reads?: Set<string>;
  writes?: Set<string>;
};
export declare function installTraceContext(context: AsyncContext<RequestTrace>): void;
export declare function tracingEnabled(): boolean;
export declare function currentTrace(): RequestTrace | undefined;
export declare function runWithTrace<T>(trace: RequestTrace, fn: () => T): T;
export declare function recordTableRead(table: string): void;
export declare function recordTableWrite(table: string): void;
export declare function recordTiming(kind: TimingKind, label: string, durationMs: number, detail?: string): void;
export declare function measure<T>(kind: TimingKind, label: string, fn: () => T | Promise<T>, detail?: string): Promise<T>;
export declare function timingTotal(trace: RequestTrace, kind: TimingKind): number;
export declare function requestDuration(trace: RequestTrace): number;
export declare function timingSummary(trace: RequestTrace): string;
export declare function logStarted(request: Request, trace: RequestTrace): void;
export declare function logProcessing(routeFile: string): void;
export declare function logCompleted(response: Response, trace: RequestTrace): void;
//#endregion