tryInvolveAccount

The tryInvolveAccount function is used to try to inolve an account in a transaction if it isn't already involved. The function will check if the account is already involved, and if not, it will involve it. It returns a boolean value of whether it was involved or not. It's parameters are:

-txId - the transaction's ID -address - the account's address -isRead - a boolean specifying whether the account is involved in reading or writing