import { AbstractMetric } from './AbstractMetric';
import { MetricValue, BasicInsightsMetricData } from './BasicInsightsMetricData';
/**
 * Type to represent a complex metric value.
 *
 * @author Tiago Grosso <tiagogrosso99@gmail.com>
 * @since 0.2.0
 */
export type ComplexMetricValue = {
    [key: string]: number;
};
/**
 * Class to represent a complex metric.
 *
 * As a metric class, it expects to receive an array of values.
 * However, for complex metrics that array has a single element.
 * This class assumes that to always be true to simplify the access the values.
 *
 * @author Tiago Grosso <tiagogrosso99@gmail.com>
 * @since 0.1.0
 */
export declare class ComplexMetric extends AbstractMetric<MetricValue<ComplexMetricValue>[]> {
    /**
     * The value.
     */
    private value;
    /**
     * The end time.
     */
    private endTime;
    /**
     * The constructor.
     *
     * @param data the metric data.
     */
    constructor(data: BasicInsightsMetricData<MetricValue<ComplexMetricValue>[]>);
    /**
     * Gets the value of the metric.
     *
     * @returns the value of the metric.
     */
    getValue(): ComplexMetricValue;
    /**
     * Gets the end time of the metric value.
     *
     * @returns the end time of the metric value.
     */
    getEndTime(): Date;
    /**
     * Gets the keys that match the provided expression.
     *
     * @param expression expression to match the values to.
     *
     * @returns the keys that match the provided expression.
     */
    getKeysByExpression(expression: (pair: [key: string, value: number]) => boolean): string[];
    /**
     * Gets the keys of the values that are greater than the provided limit.
     *
     * @param limit the limit.
     *
     * @returns the keys of the values that are greater than the provided limit.
     */
    getKeysByGreaterThan(limit: number): string[];
    /**
     * Gets the keys of the values that are greater than or equal to the provided limit.
     *
     * @param limit the limit.
     *
     * @returns the keys of the values that are greater than or equal to the provided limit.
     */
    getKeysByGreaterThanOrEqualTo(limit: number): string[];
    /**
     * Gets the keys of the values that are smaller than to the provided limit.
     *
     * @param limit the limit.
     *
     * @returns the keys of the values that are smaller than to the provided limit.
     */
    getKeysByLessThan(limit: number): string[];
    /**
     * Gets the keys of the values that are smaller than or equal to the provided limit.
     *
     * @param limit the limit.
     *
     * @returns the keys of the values that are smaller than or equal to the provided limit.
     */
    getKeysByLessThanOrEqualTo(limit: number): string[];
    /**
     * Gets the keys of the values that are equal to the provided value.
     *
     * @param valueToCompare the value to compare to.
     *
     * @returns the keys of the values that are equal to the provided value.
     */
    getKeysByEqualTo(valueToCompare: number): string[];
    /**
     * Gets the entries that match the provided expression.
     *
     * @param expression expression to match the values to.
     *
     * @returns the entries that match the provided expression.
     */
    getByExpression(expression: (pair: [key: string, value: number]) => boolean): ComplexMetricValue;
    /**
     * Gets the entries of the values that are greater than the provided limit.
     *
     * @param limit the limit.
     *
     * @returns the entries of the values that are greater than the provided limit.
     */
    getByGreaterThan(limit: number): ComplexMetricValue;
    /**
     * Gets the entries of the values that are greater than or equal to the provided limit.
     *
     * @param limit the limit.
     *
     * @returns the entries of the values that are greater than or equal to the provided limit.
     */
    getByGreaterThanOrEqualTo(limit: number): ComplexMetricValue;
    /**
     * Gets the entries of the values that are equal than the provided limit.
     *
     * @param limit the limit.
     *
     * @returns the entries of the values that are equal than the provided limit.
     */
    getByLessThan(limit: number): ComplexMetricValue;
    /**
     * Gets the entries of the values that are greater than or equal to the provided limit.
     *
     * @param limit the limit.
     *
     * @returns the entries of the values that are greater than or equal to the provided limit.
     */
    getByLessThanOrEqualTo(limit: number): ComplexMetricValue;
    /**
     * Gets the entries of the provided keys.
     *
     * @param limit the limit.
     *
     * @returns the entries of the provided keys.
     */
    getByKeys(...keys: string[]): ComplexMetricValue;
    /**
     * Returns the highest value of the metric. In case of a tie, the first value found is returned.
     *
     * @returns the highest value of the metric.
     */
    getHighest(): {
        key: string;
        value: number;
    } | undefined;
    /**
     * Returns the key of the highest value of the metric. In case of a tie, the key of the first value found is returned.
     *
     * @returns the key of highest value of the metric.
     */
    getHighestKey(): string | undefined;
    /**
     * Returns the highest value of the metric. In case of a tie, the first value found is returned.
     *
     * @returns the highest value of the metric.
     */
    getLowest(): {
        key: string;
        value: number;
    } | undefined;
    /**
     * Returns the key of the lowest value of the metric. In case of a tie, the key of the first value found is returned.
     *
     * @returns the key of lowest value of the metric.
     */
    getLowestKey(): string | undefined;
}