import type { AST } from '../../../zero-protocol/src/ast.ts';
export type ClientMetricMap = {
    'query-materialization-client': [queryID: string];
    'query-materialization-end-to-end': [queryID: string, ast: AST];
    'query-update-client': [queryID: string];
};
export type ServerMetricMap = {
    'query-materialization-server': [queryID: string];
    'query-update-server': [queryID: string];
};
export type MetricMap = ClientMetricMap & ServerMetricMap;
export interface MetricsDelegate {
    addMetric<K extends keyof MetricMap>(metric: K, value: number, ...args: MetricMap[K]): void;
}
export declare function isClientMetric(metric: keyof MetricMap): metric is keyof ClientMetricMap;
export declare function isServerMetric(metric: keyof MetricMap): metric is keyof ServerMetricMap;
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