utils

export declare const EAN: t.BrandC<t.StringC, EANBrand>

export type EAN = t.Branded<string, EANBrand>

export interface EANBrand {
  readonly EAN: unique symbol
}

export declare const eanDecoder: <S extends string>() => D.Decoder<S, t.Branded<S, EANBrand>>