<%= {
      transactionalId: "cmb15i7wg0u300q0ihjgd1n7e",
      email: @recipient,
      dataVariables: {
        order_number: @order_number
      },
      attachments: [
        {
          filename: "customs-receipt.pdf",
          contentType: "application/pdf",
          data: Base64.strict_encode64(@pdf_data)
        }
      ]
    }.to_json %> 