Monotonic Counter

See Monotonic Counter for the concept.

Call set() when an event occurs:

import {Registry} from "nflx-spectator";

const registry = new Registry();
void registry.monotonic_counter("iface.bytes").set(10);

const iface_bytes = registry.new_id("iface.bytes");
void registry.monotonic_counter_with_id(iface_bytes).set(10)