t() :: %ExDeribit.Currency{
  coin_type: String.t(),
  currency: String.t(),
  currency_long: String.t(),
  disabled_deposit_address_creation: boolean(),
  fee_precision: non_neg_integer(),
  min_confirmations: non_neg_integer(),
  min_withdrawal_fee: number(),
  withdrawal_fee: number(),
  withdrawal_priorities: [withdrawal_priority()]
}

withdrawal_priority() :: %{required(String.t()) => number() | String.t()}