Wrong endpoint url in subscription_payments resource

[wandura]

mollie-api-python/mollie/api/resources/subscription_payments.py

Line 9 in 282541b

return 'customers/{customer_id}/subscription/{subscription_id}/payments'.format(

The correct api endpoint must have "subscriptions" with "s".
I get an error message with the current endpoint url:
mollie.api.error.NotFoundError: Invalid resource endpoint

[whyscream]

We just released v2.5.3 of the client which resolves this issue. Thank you for reporting.