Money represented with the Money gem, persistence using Mongoid

mongoid_money_usage.rb

class Product
  include Mongoid::Document
  include Mongoid::Timestamps

  field :description, :type => String
  
  field :price_pence, :type => Integer, :default => 0
  field :currency_iso, :type => String, :default => Money.default_currency.iso_code
  
  validates_presence_of :description
  validates_numericality_of :price_pence
  
  # Virtual price / currency attributes
  
  def price
    Money.new(self.price_pence, currency)
  end
  def price=(price)
    self.price_pence = price.cents
  end

  def currency
    Money::Currency.new(currency_iso)
  end
  
end

How do you create a new instance of this product model?

Do you pass price or price_pence as attribute?
Product.new(price: 1000, currency_iso: 'CAD')
OR
Product.new(price_pence: 1000, currency_iso: 'CAD')