Been seeing this in my logs today.
#############################################################
# WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! #
#############################################################
Using positional arguments is **DEPRECATED**. Please use the
keyword options pattern instead. Version __0.7.0__ of the
Ruby client will not support positional arguments.
The code that is responsible for that is:
bank_account.credit((amount*100).to_i)
What do I change? Couldn't find anything in the docs either. https://www.balancedpayments.com/docs/api?language=ruby#credit-an-existing-bank-account
bank_account.credit(:amount => (amount*100).to_i)
should do the trick. The error you are getting is warning you from using positional arguments e.g.
def example(positional_arg1, positional_arg2);end
A good example of how to properly use the ruby client can be found here.