Checking if an object is an Effect in Typescript

Is this the proper way to detect if something is an Effect? Or is there a built-in utility I'm missing:

const isEffect = (x: unknown) => typeof x === 'object' && Symbol.for("effect/Effect") in x;

isEffect(Effect.succeed(null)); // true

const isEffect = (x: unknown) => typeof x === 'object' && Symbol.for("effect/Effect") in x;

isEffect(Effect.succeed(null)); // true

Checking if an object is an Effect in Typescript - Effect Community