diff --git a/compiler/frontend/frontend.iml b/compiler/frontend/frontend.iml
index 8d22f8caf8f..921ffcfc8f7 100644
--- a/compiler/frontend/frontend.iml
+++ b/compiler/frontend/frontend.iml
@@ -4,6 +4,7 @@
     <exclude-output />
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/generator" isTestSource="false" />
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
diff --git a/compiler/frontend/generator/TuplesAndFunctionsGenerator.java b/compiler/frontend/generator/TuplesAndFunctionsGenerator.java
new file mode 100644
index 00000000000..f450390b0e5
--- /dev/null
+++ b/compiler/frontend/generator/TuplesAndFunctionsGenerator.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2000-2012 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.PrintStream;
+
+/**
+ * @author abreslav
+ */
+public class TuplesAndFunctionsGenerator {
+    private static int TUPLE_COUNT = 23;
+
+    private static void generateTuples(PrintStream out, int count) {
+        generated(out);
+        out.println("class Tuple0() {}");
+        for (int i = 1; i < count; i++) {
+            out.print("class Tuple" + i);
+            out.print("<");
+            for (int j = 1; j <= i; j++) {
+                out.print("out T" + j);
+                if (j < i) {
+                    out.print(", ");
+                }
+            }
+            out.print(">");
+            out.print("(");
+            for (int j = 1; j <= i; j++) {
+                out.print("_" + j + ": " + "T" + j);
+                if (j < i) {
+                    out.print(", ");
+                }
+            }
+            out.print(") {}");
+            out.println();
+        }
+    }
+
+    private static void generateFunctions(PrintStream out, int count, boolean extension) {
+        generated(out);
+        for (int i = 0; i < count; i++) {
+            out.print("trait Function" + i);
+            out.print("<");
+            if (extension) {
+                out.print("in T");
+                if (count > 0) {
+                    out.print(", ");
+                }
+            }
+            for (int j = 1; j <= i; j++) {
+                out.print("in P" + j);
+                out.print(", ");
+            }
+            out.print("out R> {\n");
+            out.print("  fun " + (extension ? "T." : "") +
+                      "invoke(");
+            for (int j = 1; j <= i; j++) {
+                out.print("p" + j + ": " + "P" + j);
+                if (j < i) {
+                    out.print(", ");
+                }
+            }
+            out.print(") : R\n");
+            out.println("}");
+        }
+    }
+
+    private static void generated(PrintStream out) {
+        out.println("// Generated by " + TuplesAndFunctionsGenerator.class.getCanonicalName());
+        out.println("// NOTE: this code is not loaded for JetStandardLibrary, but its equivalent is manually created in JetStandardClasses");
+        out.println();
+    }
+
+    public static void main(String[] args) throws FileNotFoundException {
+        File baseDir = new File("compiler/frontend/src/jet/");
+        assert baseDir.exists() : "Base dir does not exist: " + baseDir.getAbsolutePath();
+
+        PrintStream tuples = new PrintStream(new File(baseDir, "Tuples.jet.src"));
+        generateTuples(tuples, TUPLE_COUNT);
+        tuples.close();
+
+        PrintStream functions = new PrintStream(new File(baseDir, "Functions.jet.src"));
+        generateFunctions(functions, TUPLE_COUNT, false);
+        functions.close();
+
+        PrintStream extensionFunctions = new PrintStream(new File(baseDir, "ExtensionFunctions.jet.src"));
+        generateFunctions(extensionFunctions, TUPLE_COUNT, true);
+        extensionFunctions.close();
+    }
+}
diff --git a/compiler/frontend/src/jet/ExtensionFunctions.jet.src b/compiler/frontend/src/jet/ExtensionFunctions.jet.src
new file mode 100644
index 00000000000..a4c9768d097
--- /dev/null
+++ b/compiler/frontend/src/jet/ExtensionFunctions.jet.src
@@ -0,0 +1,72 @@
+// Generated by TuplesAndFunctionsGenerator
+// NOTE: this code is not loaded for JetStandardLibrary, but its equivalent is manually created in JetStandardClasses
+
+trait Function0<in T, out R> {
+  fun T.invoke() : R
+}
+trait Function1<in T, in P1, out R> {
+  fun T.invoke(p1: P1) : R
+}
+trait Function2<in T, in P1, in P2, out R> {
+  fun T.invoke(p1: P1, p2: P2) : R
+}
+trait Function3<in T, in P1, in P2, in P3, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3) : R
+}
+trait Function4<in T, in P1, in P2, in P3, in P4, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4) : R
+}
+trait Function5<in T, in P1, in P2, in P3, in P4, in P5, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5) : R
+}
+trait Function6<in T, in P1, in P2, in P3, in P4, in P5, in P6, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6) : R
+}
+trait Function7<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7) : R
+}
+trait Function8<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8) : R
+}
+trait Function9<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9) : R
+}
+trait Function10<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10) : R
+}
+trait Function11<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11) : R
+}
+trait Function12<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12) : R
+}
+trait Function13<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13) : R
+}
+trait Function14<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14) : R
+}
+trait Function15<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15) : R
+}
+trait Function16<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15, p16: P16) : R
+}
+trait Function17<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15, p16: P16, p17: P17) : R
+}
+trait Function18<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15, p16: P16, p17: P17, p18: P18) : R
+}
+trait Function19<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15, p16: P16, p17: P17, p18: P18, p19: P19) : R
+}
+trait Function20<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, in P20, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15, p16: P16, p17: P17, p18: P18, p19: P19, p20: P20) : R
+}
+trait Function21<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, in P20, in P21, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15, p16: P16, p17: P17, p18: P18, p19: P19, p20: P20, p21: P21) : R
+}
+trait Function22<in T, in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, in P20, in P21, in P22, out R> {
+  fun T.invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15, p16: P16, p17: P17, p18: P18, p19: P19, p20: P20, p21: P21, p22: P22) : R
+}
diff --git a/compiler/frontend/src/jet/Functions.jet.src b/compiler/frontend/src/jet/Functions.jet.src
new file mode 100644
index 00000000000..857603314d5
--- /dev/null
+++ b/compiler/frontend/src/jet/Functions.jet.src
@@ -0,0 +1,72 @@
+// Generated by TuplesAndFunctionsGenerator
+// NOTE: this code is not loaded for JetStandardLibrary, but its equivalent is manually created in JetStandardClasses
+
+trait Function0<out R> {
+  fun invoke() : R
+}
+trait Function1<in P1, out R> {
+  fun invoke(p1: P1) : R
+}
+trait Function2<in P1, in P2, out R> {
+  fun invoke(p1: P1, p2: P2) : R
+}
+trait Function3<in P1, in P2, in P3, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3) : R
+}
+trait Function4<in P1, in P2, in P3, in P4, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4) : R
+}
+trait Function5<in P1, in P2, in P3, in P4, in P5, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5) : R
+}
+trait Function6<in P1, in P2, in P3, in P4, in P5, in P6, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6) : R
+}
+trait Function7<in P1, in P2, in P3, in P4, in P5, in P6, in P7, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7) : R
+}
+trait Function8<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8) : R
+}
+trait Function9<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9) : R
+}
+trait Function10<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10) : R
+}
+trait Function11<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11) : R
+}
+trait Function12<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12) : R
+}
+trait Function13<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13) : R
+}
+trait Function14<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14) : R
+}
+trait Function15<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15) : R
+}
+trait Function16<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15, p16: P16) : R
+}
+trait Function17<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15, p16: P16, p17: P17) : R
+}
+trait Function18<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15, p16: P16, p17: P17, p18: P18) : R
+}
+trait Function19<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15, p16: P16, p17: P17, p18: P18, p19: P19) : R
+}
+trait Function20<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, in P20, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15, p16: P16, p17: P17, p18: P18, p19: P19, p20: P20) : R
+}
+trait Function21<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, in P20, in P21, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15, p16: P16, p17: P17, p18: P18, p19: P19, p20: P20, p21: P21) : R
+}
+trait Function22<in P1, in P2, in P3, in P4, in P5, in P6, in P7, in P8, in P9, in P10, in P11, in P12, in P13, in P14, in P15, in P16, in P17, in P18, in P19, in P20, in P21, in P22, out R> {
+  fun invoke(p1: P1, p2: P2, p3: P3, p4: P4, p5: P5, p6: P6, p7: P7, p8: P8, p9: P9, p10: P10, p11: P11, p12: P12, p13: P13, p14: P14, p15: P15, p16: P16, p17: P17, p18: P18, p19: P19, p20: P20, p21: P21, p22: P22) : R
+}
diff --git a/compiler/frontend/src/jet/Tuples.jet.src b/compiler/frontend/src/jet/Tuples.jet.src
new file mode 100644
index 00000000000..e122ecbdeea
--- /dev/null
+++ b/compiler/frontend/src/jet/Tuples.jet.src
@@ -0,0 +1,26 @@
+// Generated by TuplesAndFunctionsGenerator
+// NOTE: this code is not loaded for JetStandardLibrary, but its equivalent is manually created in JetStandardClasses
+
+class Tuple0() {}
+class Tuple1<out T1>(_1: T1) {}
+class Tuple2<out T1, out T2>(_1: T1, _2: T2) {}
+class Tuple3<out T1, out T2, out T3>(_1: T1, _2: T2, _3: T3) {}
+class Tuple4<out T1, out T2, out T3, out T4>(_1: T1, _2: T2, _3: T3, _4: T4) {}
+class Tuple5<out T1, out T2, out T3, out T4, out T5>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5) {}
+class Tuple6<out T1, out T2, out T3, out T4, out T5, out T6>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6) {}
+class Tuple7<out T1, out T2, out T3, out T4, out T5, out T6, out T7>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7) {}
+class Tuple8<out T1, out T2, out T3, out T4, out T5, out T6, out T7, out T8>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7, _8: T8) {}
+class Tuple9<out T1, out T2, out T3, out T4, out T5, out T6, out T7, out T8, out T9>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7, _8: T8, _9: T9) {}
+class Tuple10<out T1, out T2, out T3, out T4, out T5, out T6, out T7, out T8, out T9, out T10>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7, _8: T8, _9: T9, _10: T10) {}
+class Tuple11<out T1, out T2, out T3, out T4, out T5, out T6, out T7, out T8, out T9, out T10, out T11>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7, _8: T8, _9: T9, _10: T10, _11: T11) {}
+class Tuple12<out T1, out T2, out T3, out T4, out T5, out T6, out T7, out T8, out T9, out T10, out T11, out T12>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7, _8: T8, _9: T9, _10: T10, _11: T11, _12: T12) {}
+class Tuple13<out T1, out T2, out T3, out T4, out T5, out T6, out T7, out T8, out T9, out T10, out T11, out T12, out T13>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7, _8: T8, _9: T9, _10: T10, _11: T11, _12: T12, _13: T13) {}
+class Tuple14<out T1, out T2, out T3, out T4, out T5, out T6, out T7, out T8, out T9, out T10, out T11, out T12, out T13, out T14>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7, _8: T8, _9: T9, _10: T10, _11: T11, _12: T12, _13: T13, _14: T14) {}
+class Tuple15<out T1, out T2, out T3, out T4, out T5, out T6, out T7, out T8, out T9, out T10, out T11, out T12, out T13, out T14, out T15>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7, _8: T8, _9: T9, _10: T10, _11: T11, _12: T12, _13: T13, _14: T14, _15: T15) {}
+class Tuple16<out T1, out T2, out T3, out T4, out T5, out T6, out T7, out T8, out T9, out T10, out T11, out T12, out T13, out T14, out T15, out T16>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7, _8: T8, _9: T9, _10: T10, _11: T11, _12: T12, _13: T13, _14: T14, _15: T15, _16: T16) {}
+class Tuple17<out T1, out T2, out T3, out T4, out T5, out T6, out T7, out T8, out T9, out T10, out T11, out T12, out T13, out T14, out T15, out T16, out T17>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7, _8: T8, _9: T9, _10: T10, _11: T11, _12: T12, _13: T13, _14: T14, _15: T15, _16: T16, _17: T17) {}
+class Tuple18<out T1, out T2, out T3, out T4, out T5, out T6, out T7, out T8, out T9, out T10, out T11, out T12, out T13, out T14, out T15, out T16, out T17, out T18>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7, _8: T8, _9: T9, _10: T10, _11: T11, _12: T12, _13: T13, _14: T14, _15: T15, _16: T16, _17: T17, _18: T18) {}
+class Tuple19<out T1, out T2, out T3, out T4, out T5, out T6, out T7, out T8, out T9, out T10, out T11, out T12, out T13, out T14, out T15, out T16, out T17, out T18, out T19>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7, _8: T8, _9: T9, _10: T10, _11: T11, _12: T12, _13: T13, _14: T14, _15: T15, _16: T16, _17: T17, _18: T18, _19: T19) {}
+class Tuple20<out T1, out T2, out T3, out T4, out T5, out T6, out T7, out T8, out T9, out T10, out T11, out T12, out T13, out T14, out T15, out T16, out T17, out T18, out T19, out T20>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7, _8: T8, _9: T9, _10: T10, _11: T11, _12: T12, _13: T13, _14: T14, _15: T15, _16: T16, _17: T17, _18: T18, _19: T19, _20: T20) {}
+class Tuple21<out T1, out T2, out T3, out T4, out T5, out T6, out T7, out T8, out T9, out T10, out T11, out T12, out T13, out T14, out T15, out T16, out T17, out T18, out T19, out T20, out T21>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7, _8: T8, _9: T9, _10: T10, _11: T11, _12: T12, _13: T13, _14: T14, _15: T15, _16: T16, _17: T17, _18: T18, _19: T19, _20: T20, _21: T21) {}
+class Tuple22<out T1, out T2, out T3, out T4, out T5, out T6, out T7, out T8, out T9, out T10, out T11, out T12, out T13, out T14, out T15, out T16, out T17, out T18, out T19, out T20, out T21, out T22>(_1: T1, _2: T2, _3: T3, _4: T4, _5: T5, _6: T6, _7: T7, _8: T8, _9: T9, _10: T10, _11: T11, _12: T12, _13: T13, _14: T14, _15: T15, _16: T16, _17: T17, _18: T18, _19: T19, _20: T20, _21: T21, _22: T22) {}