Function ergo::ergo_lib_wallet_sign_transaction

#[no_mangle]
pub unsafe extern "C" fn ergo_lib_wallet_sign_transaction(
    wallet_ptr: ConstWalletPtr,
    state_context_ptr: ConstErgoStateContextPtr,
    unsigned_tx_ptr: ConstUnsignedTransactionPtr,
    boxes_to_spend_ptr: ConstCollectionPtr<ErgoBox>,
    data_boxes_ptr: ConstCollectionPtr<ErgoBox>,
    transaction_out: *mut TransactionPtr
) -> ErrorPtr

Signs a transaction