Information used to provide a preview of a billing plan.
@type t() :: %DocuSign.Model.BillingPlanPreview{ currencyCode: String.t() | nil, invoice: DocuSign.Model.BillingInvoice.t() | nil, isProrated: String.t() | nil, subtotalAmount: String.t() | nil, taxAmount: String.t() | nil, totalAmount: String.t() | nil }