interface Profile {
  username: string,
  articles: [Article]
}

interface Article {
  index: number,
  name: string,
}

// Mongoose model
export interface IProfile extends Profile, Document { }
const Article = new Schema({
  index: { type: Number, required: true },
  name: { type: String, required: true },
}, { _id: false })

const Profile = new Schema({
  username: { type: String, index: true },
  upcomingChests: { type: [Article] },
}, { timestamps: true })

export const Profile = model<IProfileModel>('IProfile', Profile)

const profile: Profile = values[0]
const articles: Array<Article> = values[1]
profile.articles = articles // Error/Warning pops up in this line