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// Enum Typedefs
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// Model Typedefs
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/**
 * An invoice
 * @typedef {Object} Invoice
 * @property {number} [id] Unique identifier for an invoice
 * @property {string} invoice_number The invoice number associated with the invoice
 * @property {string} po_number The purchase number associated with the invoice
 * @property {string} due_date When invoice payment is due
 * @property {number} amount_cents Total amount of invoice in US cents
 * @property {string} [created_at] Invoice creation timestamp
 */

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// Union Typedefs
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