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-

test/functional/wallet_createwallet.py

@@ -24,7 +24,7 @@ class CreateWalletTest(BitcoinTestFramework):
 
     def run_test(self):
         node = self.nodes[0]
-        node.generate(1) # Leave IBD for sethdseed
+        self.generate(node, 1) # Leave IBD for sethdseed
 
         self.nodes[0].createwallet(wallet_name='w0')
         w0 = node.get_wallet_rpc('w0')