@type t() :: %MollieAPI.Model.SessionRequest{
  _links: MollieAPI.Model.EntitySessionLinks.t() | nil,
  amount: MollieAPI.Model.Amount.t(),
  billingAddress: MollieAPI.Model.PaymentAddress.t() | nil,
  clientAccessToken: any() | nil,
  createdAt: any() | nil,
  customerId: any() | nil,
  description: any(),
  id: String.t() | nil,
  lines: [MollieAPI.Model.SessionLineItem.t()],
  metadata: %{optional(String.t()) => any()} | nil,
  mode: MollieAPI.Model.Mode.t() | nil,
  payment: MollieAPI.Model.EntitySessionPayment.t() | nil,
  profileId: any() | nil,
  redirectUrl: any(),
  resource: any() | nil,
  sequenceType: MollieAPI.Model.SessionSequenceType.t() | nil,
  shippingAddress: MollieAPI.Model.PaymentAddress.t() | nil,
  status: MollieAPI.Model.SessionStatus.t() | nil,
  testmode: any() | nil
}