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Add some more documentation

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1 parent 45682c0 commit 8733ed7cf54edd1af38f46aaaeac4f14c8a7d75e @mikel mikel committed
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  1. +2 −0 lib/active_merchant/billing/gateways/payment_express.rb
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2 lib/active_merchant/billing/gateways/payment_express.rb
@@ -108,6 +108,8 @@ def credit(money, identification, options = {})
# Firstly, pass in a `:billing_id` as an option in the hash of this store method. No
# validation is done on this BillingId by PaymentExpress so you must ensure that it is unique.
#
+ # gateway.store(credit_card, {:billing_id => 'YourUniqueBillingId'})
+ #
# Secondly, you will need to pass in the option `{:use_custom_payment_token => true}` when
# initializing your gateway instance, like so:
#

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