from
Parses a TON address from a Bag of Cells (BoC) with a single root Cell. The function is mostly used to parse a Jetton user address received on `get_wallet_address` RPC. https://docs.ton.org/develop/dapps/asset-processing/jettons#retrieving-jetton-wallet-addresses-for-a-given-user
Return
Pointer to a Jetton address.
Parameters
boc
Base64 encoded Bag Of Cells (BoC).