scripted-diff: Use generate* from TestFramework

-BEGIN VERIFY SCRIPT-
 sed --regexp-extended -i \
     's/((self\.)?(nodes\[[^]]+\]|[a-z_]*(wallet|node)[0-9a-z_]*))\.(generate(|toaddress|block|todescriptor)(\(|, ))/self.\5\1, /g' \
     $(git grep -l generate ./test | grep -v 'test_framework/' | grep -v 'feature_rbf')
-END VERIFY SCRIPT-

1 files changed, 2 insertions, 2 deletions

diff --git a/test/functional/feature_nulldummy.py b/test/functional/feature_nulldummy.py
index 678e103e5f..96984e1e64 100755
--- a/test/functional/feature_nulldummy.py
+++ b/test/functional/feature_nulldummy.py
@@ -74,11 +74,11 @@ class NULLDUMMYTest(BitcoinTestFramework):
             wmulti.importaddress(self.ms_address)
             wmulti.importaddress(self.wit_ms_address)
 
-        self.coinbase_blocks = self.nodes[0].generate(2)  # block height = 2
+        self.coinbase_blocks = self.generate(self.nodes[0], 2)  # block height = 2
         coinbase_txid = []
         for i in self.coinbase_blocks:
             coinbase_txid.append(self.nodes[0].getblock(i)['tx'][0])
-        self.nodes[0].generate(COINBASE_MATURITY)  # block height = COINBASE_MATURITY + 2
+        self.generate(self.nodes[0], COINBASE_MATURITY)  # block height = COINBASE_MATURITY + 2
         self.lastblockhash = self.nodes[0].getbestblockhash()
         self.lastblockheight = COINBASE_MATURITY + 2
         self.lastblocktime = int(time.time()) + self.lastblockheight