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diff --git a/frontend-old/node_modules/web-vitals/dist/modules/onTTFB.d.ts b/frontend-old/node_modules/web-vitals/dist/modules/onTTFB.d.ts
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+import { MetricRatingThresholds, ReportOpts, TTFBMetric } from './types.js';
+/** Thresholds for TTFB. See https://web.dev/articles/ttfb#what_is_a_good_ttfb_score */
+export declare const TTFBThresholds: MetricRatingThresholds;
+/**
+ * Calculates the [TTFB](https://web.dev/articles/ttfb) value for the
+ * current page and calls the `callback` function once the page has loaded,
+ * along with the relevant `navigation` performance entry used to determine the
+ * value. The reported value is a `DOMHighResTimeStamp`.
+ *
+ * Note, this function waits until after the page is loaded to call `callback`
+ * in order to ensure all properties of the `navigation` entry are populated.
+ * This is useful if you want to report on other metrics exposed by the
+ * [Navigation Timing API](https://w3c.github.io/navigation-timing/). For
+ * example, the TTFB metric starts from the page's [time
+ * origin](https://www.w3.org/TR/hr-time-2/#sec-time-origin), which means it
+ * includes time spent on DNS lookup, connection negotiation, network latency,
+ * and server processing time.
+ */
+export declare const onTTFB: (onReport: (metric: TTFBMetric) => void, opts?: ReportOpts) => void;