Function isFlatten

packages/printer/src/internal/flatten.ts:49–50

(u: unknown)

/** @internal */
export const isFlatten = (u: unknown): u is Flatten.Flatten<unknown> =>
  typeof u === "object" && u != null && FlattenTypeId in u

/** @internal */
export const isFlattened = <A>(self: Flatten.Flatten<A>): self is Flatten.Flattened<A> => self._tag === "Flattened"