@type t() :: %Cyphi.Answer{
  grade: String.t() | nil,
  grade_id: integer() | nil,
  id: integer() | nil,
  points: number() | nil,
  position: integer() | nil,
  question_id: integer() | nil,
  response: String.t() | nil,
  score: number() | nil,
  user_id: integer() | nil
}