Issuing and Exchange functions
Function definitions
Both functions are to be called on the Cash contract.

Request issue of Verified cash token for fiat paid in

payIn(_tokens, _payer, _currency)
Function parameter
Description
_tokens
number of cash tokens to issue
_payer
address of user paying in fiat currency
_currency
name of fiat currency paid in

Request exchange of Verified cash tokens

transferFrom(_fromCurrency, _toCurrency, _amount)
Function parameter
Description
_fromCurrency
address of Verified cash token to debit and convert from
_toCurrency
address of Verified cash token to exchange to and credit
_amount
name of the cash tokens to debit and convert