import { Token } from 'prismjs';
import { type AbstractLabelMatcher, type AbstractQuery, type DataQuery, type DateTime, type TimeRange } from '@grafana/data';
import { PrometheusCacheLevel, type PromMetricsMetadata, type PromMetricsMetadataItem, type RecordingRuleIdentifier } from './types';
export declare const processHistogramMetrics: (metrics: string[]) => string[];
export declare function expandRecordingRules(query: string, mapping: {
    [name: string]: RecordingRuleIdentifier;
}): string;
/**
 * Adds metadata for synthetic metrics for which the API does not provide metadata.
 * See https://github.com/grafana/grafana/issues/22337 for details.
 *
 * @param metadata HELP and TYPE metadata from /api/v1/metadata
 */
export declare function fixSummariesMetadata(metadata: {
    [metric: string]: PromMetricsMetadataItem[];
}): PromMetricsMetadata;
export declare function roundMsToMin(milliseconds: number): number;
export declare function toPromLikeQuery(labelBasedQuery: AbstractQuery): PromLikeQuery;
interface PromLikeQuery extends DataQuery {
    expr: string;
    range: boolean;
}
export declare function extractLabelMatchers(tokens: Array<string | Token>): AbstractLabelMatcher[];
/**
 * Calculates new interval "snapped" to the closest Nth minute, depending on cache level datasource setting
 * @param cacheLevel
 * @param range
 */
export declare function getRangeSnapInterval(cacheLevel: PrometheusCacheLevel, range: TimeRange): {
    start: string;
    end: string;
};
export declare function getPrometheusTime(date: string | DateTime, roundUp: boolean): number;
/**
 * Used to truncate metrics, label names and label value in the query builder select components
 * to improve frontend performance. This is best used with an async select component including
 * the loadOptions property where we should still allow users to search all results with a string.
 * This can be done either storing the total results or querying an api that allows for matching a query.
 *
 * @param array
 * @param limit
 * @returns
 */
export declare function truncateResult<T>(array: T[], limit?: number): T[];
/**
 * Removes quotes from a string if they exist.
 * Used to handle utf8 label keys in Prometheus queries.
 *
 * @param {string} input - Input string that may have surrounding quotes
 * @returns {string} String with surrounding quotes removed if they existed
 */
export declare function removeQuotesIfExist(input: string): string;
export {};