import type { PromqlFunctionDefinition } from '../../definition_types';
/**
 * Calculates the difference between the first and last value of each time series in a range vector. Operates on gauges: counter inputs are automatically and transparently converted to a gauge with `to_gauge`. The result is always a `double`.
 *
 * @example
 * delta(cpu_temp_celsius[2h])
 */
declare const definition: PromqlFunctionDefinition;
export default definition;
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