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stripe: Create void_all_open_invoices.

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This commit is contained in:
Vishnu KS
2020-08-13 14:09:25 +05:30
committed by Tim Abbott
parent 0d30f59c97
commit b8b2e443bc
10 changed files with 772 additions and 1 deletions
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14
corporate/lib/stripe.py
View File

@@ -636,3 +636,17 @@ def downgrade_now_without_creating_additional_invoices(realm: Realm) -> None:
plan.invoiced_through = LicenseLedger.objects.filter(plan=plan).order_by('id').last() plan.invoiced_through = LicenseLedger.objects.filter(plan=plan).order_by('id').last()
plan.next_invoice_date = next_invoice_date(plan) plan.next_invoice_date = next_invoice_date(plan)
plan.save(update_fields=["invoiced_through", "next_invoice_date"]) plan.save(update_fields=["invoiced_through", "next_invoice_date"])
def void_all_open_invoices(realm: Realm) -> int:
customer = get_customer_by_realm(realm)
if customer is None:
return 0
invoices = stripe.Invoice.list(customer=customer.stripe_customer_id)
voided_invoices_count = 0
for invoice in invoices:
if invoice.status == "open":
stripe.Invoice.void_invoice(
invoice.id
)
voided_invoices_count += 1
return voided_invoices_count

54
corporate/tests/stripe_fixtures/void_all_open_invoices--Customer.create.1.json Normal file
View File

@@ -0,0 +1,54 @@
{
"account_balance": 0,
"address": null,
"balance": 0,
"created": 1000000000,
"currency": null,
"default_source": null,
"delinquent": false,
"description": "zulip (Zulip Dev)",
"discount": null,
"email": "iago@zulip.com",
"id": "cus_NORMALIZED0001",
"invoice_prefix": "NORMA01",
"invoice_settings": {
"custom_fields": null,
"default_payment_method": null,
"footer": null
},
"livemode": false,
"metadata": {
"realm_id": "1",
"realm_str": "zulip"
},
"name": null,
"next_invoice_sequence": 1,
"object": "customer",
"phone": null,
"preferred_locales": [],
"shipping": null,
"sources": {
"data": [],
"has_more": false,
"object": "list",
"total_count": 0,
"url": "/v1/customers/cus_NORMALIZED0001/sources"
},
"subscriptions": {
"data": [],
"has_more": false,
"object": "list",
"total_count": 0,
"url": "/v1/customers/cus_NORMALIZED0001/subscriptions"
},
"tax_exempt": "none",
"tax_ids": {
"data": [],
"has_more": false,
"object": "list",
"total_count": 0,
"url": "/v1/customers/cus_NORMALIZED0001/tax_ids"
},
"tax_info": null,
"tax_info_verification": null
}

122
corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.create.1.json Normal file
View File

@@ -0,0 +1,122 @@
{
"account_country": "US",
"account_name": null,
"amount_due": 6400,
"amount_paid": 0,
"amount_remaining": 6400,
"application_fee": null,
"attempt_count": 0,
"attempted": false,
"auto_advance": true,
"billing": "send_invoice",
"billing_reason": "manual",
"charge": null,
"collection_method": "send_invoice",
"created": 1000000000,
"currency": "usd",
"custom_fields": null,
"customer": "cus_NORMALIZED0001",
"customer_address": null,
"customer_email": "iago@zulip.com",
"customer_name": null,
"customer_phone": null,
"customer_shipping": null,
"customer_tax_exempt": "none",
"customer_tax_ids": [],
"date": 1000000000,
"default_payment_method": null,
"default_source": null,
"default_tax_rates": [],
"description": null,
"discount": null,
"discounts": [],
"due_date": 1000000000,
"ending_balance": null,
"finalized_at": null,
"footer": null,
"hosted_invoice_url": null,
"id": "in_NORMALIZED00000000000001",
"invoice_pdf": null,
"lines": {
"data": [
{
"amount": 6400,
"currency": "usd",
"description": "Zulip standard upgrade",
"discount_amounts": [],
"discountable": false,
"discounts": [],
"id": "ii_NORMALIZED00000000000001",
"invoice_item": "ii_NORMALIZED00000000000001",
"livemode": false,
"metadata": {},
"object": "line_item",
"period": {
"end": 1000000000,
"start": 1000000000
},
"plan": null,
"price": {
"active": false,
"billing_scheme": "per_unit",
"created": 1000000000,
"currency": "usd",
"id": "price_1HFiX7D2X8vgpBNGZKqyye0n",
"livemode": false,
"lookup_key": null,
"metadata": {},
"nickname": null,
"object": "price",
"product": "prod_HpNH3ZK9Bpc89P",
"recurring": null,
"tiers_mode": null,
"transform_quantity": null,
"type": "one_time",
"unit_amount": 800,
"unit_amount_decimal": "800"
},
"proration": false,
"quantity": 8,
"subscription": null,
"tax_amounts": [],
"tax_rates": [],
"type": "invoiceitem",
"unique_id": "il_1HFiX7D2X8vgpBNGYzYwN35m"
}
],
"has_more": false,
"object": "list",
"total_count": 1,
"url": "/v1/invoices/in_NORMALIZED00000000000001/lines"
},
"livemode": false,
"metadata": {},
"next_payment_attempt": null,
"number": "NORMALI-0001",
"object": "invoice",
"paid": false,
"payment_intent": null,
"period_end": 1000000000,
"period_start": 1000000000,
"post_payment_credit_notes_amount": 0,
"pre_payment_credit_notes_amount": 0,
"receipt_number": null,
"starting_balance": 0,
"statement_descriptor": "Zulip Standard",
"status": "draft",
"status_transitions": {
"finalized_at": null,
"marked_uncollectible_at": null,
"paid_at": null,
"voided_at": null
},
"subscription": null,
"subtotal": 6400,
"tax": null,
"tax_percent": null,
"total": 6400,
"total_discount_amounts": [],
"total_tax_amounts": [],
"transfer_data": null,
"webhooks_delivered_at": 1000000000
}

122
corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.finalize_invoice.1.json Normal file
View File

@@ -0,0 +1,122 @@
{
"account_country": "US",
"account_name": null,
"amount_due": 6400,
"amount_paid": 0,
"amount_remaining": 6400,
"application_fee": null,
"attempt_count": 0,
"attempted": false,
"auto_advance": true,
"billing": "send_invoice",
"billing_reason": "manual",
"charge": null,
"collection_method": "send_invoice",
"created": 1000000000,
"currency": "usd",
"custom_fields": null,
"customer": "cus_NORMALIZED0001",
"customer_address": null,
"customer_email": "iago@zulip.com",
"customer_name": null,
"customer_phone": null,
"customer_shipping": null,
"customer_tax_exempt": "none",
"customer_tax_ids": [],
"date": 1000000000,
"default_payment_method": null,
"default_source": null,
"default_tax_rates": [],
"description": null,
"discount": null,
"discounts": [],
"due_date": 1000000000,
"ending_balance": 0,
"finalized_at": 1000000000,
"footer": null,
"hosted_invoice_url": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS",
"id": "in_NORMALIZED00000000000001",
"invoice_pdf": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS/pdf",
"lines": {
"data": [
{
"amount": 6400,
"currency": "usd",
"description": "Zulip standard upgrade",
"discount_amounts": [],
"discountable": false,
"discounts": [],
"id": "ii_NORMALIZED00000000000001",
"invoice_item": "ii_NORMALIZED00000000000001",
"livemode": false,
"metadata": {},
"object": "line_item",
"period": {
"end": 1000000000,
"start": 1000000000
},
"plan": null,
"price": {
"active": false,
"billing_scheme": "per_unit",
"created": 1000000000,
"currency": "usd",
"id": "price_1HFiX7D2X8vgpBNGZKqyye0n",
"livemode": false,
"lookup_key": null,
"metadata": {},
"nickname": null,
"object": "price",
"product": "prod_HpNH3ZK9Bpc89P",
"recurring": null,
"tiers_mode": null,
"transform_quantity": null,
"type": "one_time",
"unit_amount": 800,
"unit_amount_decimal": "800"
},
"proration": false,
"quantity": 8,
"subscription": null,
"tax_amounts": [],
"tax_rates": [],
"type": "invoiceitem",
"unique_id": "il_1HFiX7D2X8vgpBNGYzYwN35m"
}
],
"has_more": false,
"object": "list",
"total_count": 1,
"url": "/v1/invoices/in_NORMALIZED00000000000001/lines"
},
"livemode": false,
"metadata": {},
"next_payment_attempt": null,
"number": "NORMALI-0001",
"object": "invoice",
"paid": false,
"payment_intent": "pi_1HFiX8D2X8vgpBNGGjAHPbBr",
"period_end": 1000000000,
"period_start": 1000000000,
"post_payment_credit_notes_amount": 0,
"pre_payment_credit_notes_amount": 0,
"receipt_number": null,
"starting_balance": 0,
"statement_descriptor": "Zulip Standard",
"status": "open",
"status_transitions": {
"finalized_at": 1000000000,
"marked_uncollectible_at": null,
"paid_at": null,
"voided_at": null
},
"subscription": null,
"subtotal": 6400,
"tax": null,
"tax_percent": null,
"total": 6400,
"total_discount_amounts": [],
"total_tax_amounts": [],
"transfer_data": null,
"webhooks_delivered_at": 1000000000
}

129
corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.list.1.json Normal file
View File

@@ -0,0 +1,129 @@
{
"data": [
{
"account_country": "US",
"account_name": null,
"amount_due": 6400,
"amount_paid": 0,
"amount_remaining": 6400,
"application_fee": null,
"attempt_count": 0,
"attempted": false,
"auto_advance": true,
"billing": "send_invoice",
"billing_reason": "manual",
"charge": null,
"collection_method": "send_invoice",
"created": 1000000000,
"currency": "usd",
"custom_fields": null,
"customer": "cus_NORMALIZED0001",
"customer_address": null,
"customer_email": "iago@zulip.com",
"customer_name": null,
"customer_phone": null,
"customer_shipping": null,
"customer_tax_exempt": "none",
"customer_tax_ids": [],
"date": 1000000000,
"default_payment_method": null,
"default_source": null,
"default_tax_rates": [],
"description": null,
"discount": null,
"discounts": [],
"due_date": 1000000000,
"ending_balance": 0,
"finalized_at": 1000000000,
"footer": null,
"hosted_invoice_url": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS",
"id": "in_NORMALIZED00000000000001",
"invoice_pdf": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS/pdf",
"lines": {
"data": [
{
"amount": 6400,
"currency": "usd",
"description": "Zulip standard upgrade",
"discount_amounts": [],
"discountable": false,
"discounts": [],
"id": "ii_NORMALIZED00000000000001",
"invoice_item": "ii_NORMALIZED00000000000001",
"livemode": false,
"metadata": {},
"object": "line_item",
"period": {
"end": 1000000000,
"start": 1000000000
},
"plan": null,
"price": {
"active": false,
"billing_scheme": "per_unit",
"created": 1000000000,
"currency": "usd",
"id": "price_1HFiX7D2X8vgpBNGZKqyye0n",
"livemode": false,
"lookup_key": null,
"metadata": {},
"nickname": null,
"object": "price",
"product": "prod_HpNH3ZK9Bpc89P",
"recurring": null,
"tiers_mode": null,
"transform_quantity": null,
"type": "one_time",
"unit_amount": 800,
"unit_amount_decimal": "800"
},
"proration": false,
"quantity": 8,
"subscription": null,
"tax_amounts": [],
"tax_rates": [],
"type": "invoiceitem",
"unique_id": "il_1HFiX7D2X8vgpBNGYzYwN35m"
}
],
"has_more": false,
"object": "list",
"total_count": 1,
"url": "/v1/invoices/in_NORMALIZED00000000000001/lines"
},
"livemode": false,
"metadata": {},
"next_payment_attempt": null,
"number": "NORMALI-0001",
"object": "invoice",
"paid": false,
"payment_intent": "pi_1HFiX8D2X8vgpBNGGjAHPbBr",
"period_end": 1000000000,
"period_start": 1000000000,
"post_payment_credit_notes_amount": 0,
"pre_payment_credit_notes_amount": 0,
"receipt_number": null,
"starting_balance": 0,
"statement_descriptor": "Zulip Standard",
"status": "open",
"status_transitions": {
"finalized_at": 1000000000,
"marked_uncollectible_at": null,
"paid_at": null,
"voided_at": null
},
"subscription": null,
"subtotal": 6400,
"tax": null,
"tax_percent": null,
"total": 6400,
"total_discount_amounts": [],
"total_tax_amounts": [],
"transfer_data": null,
"webhooks_delivered_at": 1000000000
}
],
"has_more": false,
"object": "list",
"url": "/v1/invoices"
}

129
corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.list.2.json Normal file
View File

@@ -0,0 +1,129 @@
{
"data": [
{
"account_country": "US",
"account_name": null,
"amount_due": 6400,
"amount_paid": 0,
"amount_remaining": 6400,
"application_fee": null,
"attempt_count": 0,
"attempted": false,
"auto_advance": false,
"billing": "send_invoice",
"billing_reason": "manual",
"charge": null,
"collection_method": "send_invoice",
"created": 1000000000,
"currency": "usd",
"custom_fields": null,
"customer": "cus_NORMALIZED0001",
"customer_address": null,
"customer_email": "iago@zulip.com",
"customer_name": null,
"customer_phone": null,
"customer_shipping": null,
"customer_tax_exempt": "none",
"customer_tax_ids": [],
"date": 1000000000,
"default_payment_method": null,
"default_source": null,
"default_tax_rates": [],
"description": null,
"discount": null,
"discounts": [],
"due_date": 1000000000,
"ending_balance": 0,
"finalized_at": 1000000000,
"footer": null,
"hosted_invoice_url": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS",
"id": "in_NORMALIZED00000000000001",
"invoice_pdf": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS/pdf",
"lines": {
"data": [
{
"amount": 6400,
"currency": "usd",
"description": "Zulip standard upgrade",
"discount_amounts": [],
"discountable": false,
"discounts": [],
"id": "ii_NORMALIZED00000000000001",
"invoice_item": "ii_NORMALIZED00000000000001",
"livemode": false,
"metadata": {},
"object": "line_item",
"period": {
"end": 1000000000,
"start": 1000000000
},
"plan": null,
"price": {
"active": false,
"billing_scheme": "per_unit",
"created": 1000000000,
"currency": "usd",
"id": "price_1HFiX7D2X8vgpBNGZKqyye0n",
"livemode": false,
"lookup_key": null,
"metadata": {},
"nickname": null,
"object": "price",
"product": "prod_HpNH3ZK9Bpc89P",
"recurring": null,
"tiers_mode": null,
"transform_quantity": null,
"type": "one_time",
"unit_amount": 800,
"unit_amount_decimal": "800"
},
"proration": false,
"quantity": 8,
"subscription": null,
"tax_amounts": [],
"tax_rates": [],
"type": "invoiceitem",
"unique_id": "il_1HFiX7D2X8vgpBNGYzYwN35m"
}
],
"has_more": false,
"object": "list",
"total_count": 1,
"url": "/v1/invoices/in_NORMALIZED00000000000001/lines"
},
"livemode": false,
"metadata": {},
"next_payment_attempt": null,
"number": "NORMALI-0001",
"object": "invoice",
"paid": false,
"payment_intent": "pi_1HFiX8D2X8vgpBNGGjAHPbBr",
"period_end": 1000000000,
"period_start": 1000000000,
"post_payment_credit_notes_amount": 0,
"pre_payment_credit_notes_amount": 0,
"receipt_number": null,
"starting_balance": 0,
"statement_descriptor": "Zulip Standard",
"status": "void",
"status_transitions": {
"finalized_at": 1000000000,
"marked_uncollectible_at": null,
"paid_at": null,
"voided_at": 1000000000
},
"subscription": null,
"subtotal": 6400,
"tax": null,
"tax_percent": null,
"total": 6400,
"total_discount_amounts": [],
"total_tax_amounts": [],
"transfer_data": null,
"webhooks_delivered_at": 1000000000
}
],
"has_more": false,
"object": "list",
"url": "/v1/invoices"
}

122
corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.void_invoice.1.json Normal file
View File

@@ -0,0 +1,122 @@
{
"account_country": "US",
"account_name": null,
"amount_due": 6400,
"amount_paid": 0,
"amount_remaining": 6400,
"application_fee": null,
"attempt_count": 0,
"attempted": false,
"auto_advance": false,
"billing": "send_invoice",
"billing_reason": "manual",
"charge": null,
"collection_method": "send_invoice",
"created": 1000000000,
"currency": "usd",
"custom_fields": null,
"customer": "cus_NORMALIZED0001",
"customer_address": null,
"customer_email": "iago@zulip.com",
"customer_name": null,
"customer_phone": null,
"customer_shipping": null,
"customer_tax_exempt": "none",
"customer_tax_ids": [],
"date": 1000000000,
"default_payment_method": null,
"default_source": null,
"default_tax_rates": [],
"description": null,
"discount": null,
"discounts": [],
"due_date": 1000000000,
"ending_balance": 0,
"finalized_at": 1000000000,
"footer": null,
"hosted_invoice_url": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS",
"id": "in_NORMALIZED00000000000001",
"invoice_pdf": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS/pdf",
"lines": {
"data": [
{
"amount": 6400,
"currency": "usd",
"description": "Zulip standard upgrade",
"discount_amounts": [],
"discountable": false,
"discounts": [],
"id": "ii_NORMALIZED00000000000001",
"invoice_item": "ii_NORMALIZED00000000000001",
"livemode": false,
"metadata": {},
"object": "line_item",
"period": {
"end": 1000000000,
"start": 1000000000
},
"plan": null,
"price": {
"active": false,
"billing_scheme": "per_unit",
"created": 1000000000,
"currency": "usd",
"id": "price_1HFiX7D2X8vgpBNGZKqyye0n",
"livemode": false,
"lookup_key": null,
"metadata": {},
"nickname": null,
"object": "price",
"product": "prod_HpNH3ZK9Bpc89P",
"recurring": null,
"tiers_mode": null,
"transform_quantity": null,
"type": "one_time",
"unit_amount": 800,
"unit_amount_decimal": "800"
},
"proration": false,
"quantity": 8,
"subscription": null,
"tax_amounts": [],
"tax_rates": [],
"type": "invoiceitem",
"unique_id": "il_1HFiX7D2X8vgpBNGYzYwN35m"
}
],
"has_more": false,
"object": "list",
"total_count": 1,
"url": "/v1/invoices/in_NORMALIZED00000000000001/lines"
},
"livemode": false,
"metadata": {},
"next_payment_attempt": null,
"number": "NORMALI-0001",
"object": "invoice",
"paid": false,
"payment_intent": "pi_1HFiX8D2X8vgpBNGGjAHPbBr",
"period_end": 1000000000,
"period_start": 1000000000,
"post_payment_credit_notes_amount": 0,
"pre_payment_credit_notes_amount": 0,
"receipt_number": null,
"starting_balance": 0,
"statement_descriptor": "Zulip Standard",
"status": "void",
"status_transitions": {
"finalized_at": 1000000000,
"marked_uncollectible_at": null,
"paid_at": null,
"voided_at": 1000000000
},
"subscription": null,
"subtotal": 6400,
"tax": null,
"tax_percent": null,
"total": 6400,
"total_discount_amounts": [],
"total_tax_amounts": [],
"transfer_data": null,
"webhooks_delivered_at": 1000000000
}

44
corporate/tests/stripe_fixtures/void_all_open_invoices--InvoiceItem.create.1.json Normal file
View File

@@ -0,0 +1,44 @@
{
"amount": 6400,
"currency": "usd",
"customer": "cus_NORMALIZED0001",
"date": 1000000000,
"description": "Zulip standard upgrade",
"discountable": false,
"discounts": [],
"id": "ii_NORMALIZED00000000000001",
"invoice": null,
"livemode": false,
"metadata": {},
"object": "invoiceitem",
"period": {
"end": 1000000000,
"start": 1000000000
},
"plan": null,
"price": {
"active": false,
"billing_scheme": "per_unit",
"created": 1000000000,
"currency": "usd",
"id": "price_1HFiX7D2X8vgpBNGZKqyye0n",
"livemode": false,
"lookup_key": null,
"metadata": {},
"nickname": null,
"object": "price",
"product": "prod_HpNH3ZK9Bpc89P",
"recurring": null,
"tiers_mode": null,
"transform_quantity": null,
"type": "one_time",
"unit_amount": 800,
"unit_amount_decimal": "800"
},
"proration": false,
"quantity": 8,
"subscription": null,
"tax_rates": [],
"unit_amount": 800,
"unit_amount_decimal": "800"
}

32
corporate/tests/test_stripe.py
View File

@@ -40,6 +40,7 @@ from corporate.lib.stripe import (
update_license_ledger_for_automanaged_plan, update_license_ledger_for_automanaged_plan,
update_license_ledger_if_needed, update_license_ledger_if_needed,
update_or_create_stripe_customer, update_or_create_stripe_customer,
void_all_open_invoices,
) )
from corporate.models import ( from corporate.models import (
Customer, Customer,
@@ -201,7 +202,7 @@ MOCKED_STRIPE_FUNCTION_NAMES = [f"stripe.{name}" for name in [
"Charge.create", "Charge.list", "Charge.create", "Charge.list",
"Coupon.create", "Coupon.create",
"Customer.create", "Customer.retrieve", "Customer.save", "Customer.create", "Customer.retrieve", "Customer.save",
"Invoice.create", "Invoice.finalize_invoice", "Invoice.list", "Invoice.pay", "Invoice.upcoming", "Invoice.create", "Invoice.finalize_invoice", "Invoice.list", "Invoice.pay", "Invoice.upcoming", "Invoice.void_invoice",
"InvoiceItem.create", "InvoiceItem.list", "InvoiceItem.create", "InvoiceItem.list",
"Plan.create", "Plan.create",
"Product.create", "Product.create",
@@ -1816,6 +1817,35 @@ class StripeTest(StripeTestCase):
self.assertEqual(old_plan.next_invoice_date, None) self.assertEqual(old_plan.next_invoice_date, None)
self.assertEqual(old_plan.status, CustomerPlan.ENDED) self.assertEqual(old_plan.status, CustomerPlan.ENDED)
@mock_stripe()
def test_void_all_open_invoices(self, *mock: Mock) -> None:
iago = self.example_user("iago")
self.assertEqual(void_all_open_invoices(iago.realm), 0)
customer = update_or_create_stripe_customer(iago)
stripe.InvoiceItem.create(
currency='usd',
customer=customer.stripe_customer_id,
description="Zulip standard upgrade",
discountable=False,
unit_amount=800,
quantity=8
)
stripe_invoice = stripe.Invoice.create(
auto_advance=True,
billing="send_invoice",
customer=customer.stripe_customer_id,
days_until_due=30,
statement_descriptor='Zulip Standard'
)
stripe.Invoice.finalize_invoice(stripe_invoice)
self.assertEqual(void_all_open_invoices(iago.realm), 1)
invoices = stripe.Invoice.list(customer=customer.stripe_customer_id)
self.assertEqual(len(invoices), 1)
for invoice in invoices:
self.assertEqual(invoice.status, "void")
class RequiresBillingAccessTest(ZulipTestCase): class RequiresBillingAccessTest(ZulipTestCase):
def setUp(self) -> None: def setUp(self) -> None:
super().setUp() super().setUp()

5
stubs/stripe/__init__.pyi
View File

@@ -47,6 +47,7 @@ class Customer:
class Invoice: class Invoice:
id: str
auto_advance: bool auto_advance: bool
amount_due: int amount_due: int
billing: str billing: str
@@ -81,6 +82,10 @@ class Invoice:
def pay(invoice: Invoice) -> Invoice: def pay(invoice: Invoice) -> Invoice:
... ...
@staticmethod
def void_invoice(id: str) -> None:
...
def get(self, key: str) -> Any: def get(self, key: str) -> Any:
... ...