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_import_rescan.py

@@ -178,7 +178,7 @@ class ImportRescanTest(BitcoinTestFramework):
             variant.key = self.nodes[1].dumpprivkey(variant.address["address"])
             variant.initial_amount = get_rand_amount()
             variant.initial_txid = self.nodes[0].sendtoaddress(variant.address["address"], variant.initial_amount)
-            self.nodes[0].generate(1)  # Generate one block for each send
+            self.generate(self.nodes[0], 1)  # Generate one block for each send
             variant.confirmation_height = self.nodes[0].getblockcount()
             variant.timestamp = self.nodes[0].getblockheader(self.nodes[0].getbestblockhash())["time"]
         self.sync_all() # Conclude sync before calling setmocktime to avoid timeouts
@@ -189,7 +189,7 @@ class ImportRescanTest(BitcoinTestFramework):
             self.nodes,
             self.nodes[0].getblockheader(self.nodes[0].getbestblockhash())["time"] + TIMESTAMP_WINDOW + 1,
         )
-        self.nodes[0].generate(1)
+        self.generate(self.nodes[0], 1)
         self.sync_all()
 
         # For each variation of wallet key import, invoke the import RPC and
@@ -212,7 +212,7 @@ class ImportRescanTest(BitcoinTestFramework):
         for i, variant in enumerate(IMPORT_VARIANTS):
             variant.sent_amount = get_rand_amount()
             variant.sent_txid = self.nodes[0].sendtoaddress(variant.address["address"], variant.sent_amount)
-            self.nodes[0].generate(1)  # Generate one block for each send
+            self.generate(self.nodes[0], 1)  # Generate one block for each send
             variant.confirmation_height = self.nodes[0].getblockcount()
 
         assert_equal(self.nodes[0].getrawmempool(), [])