jakebiesinger-storyhealth

import { Observable } from '@opentelemetry/api';
import debug from 'debug';
import { deepEqual } from 'fast-equals';
import { DateTime, Duration } from 'luxon';

const debugLog = debug('graphile-worker:metrics');

/**
 * A wrapper around an OpenTelemetry gauge, allowing synchronous reporting of values (which are still collected asynchronously).
 *

hediet

type StringBool = "true"|"false";


interface AnyNumber { prev?: any, isZero: StringBool };
interface PositiveNumber { prev: any, isZero: "false" };

type IsZero<TNumber extends AnyNumber> = TNumber["isZero"];
type Next<TNumber extends AnyNumber> = { prev: TNumber, isZero: "false" };
type Prev<TNumber extends PositiveNumber> = TNumber["prev"];