PyNamedTupleStub:

creating: check that namedtuple(...) is called, locally resolve tuple name and fields
IO: deserialize and serialize: callee name, tuple name, fields number and fields names
using: update PyStdlibTypeProvider to use stubs for namedtuples

python/psi-api/src/com/jetbrains/python/psi/stubs/PyNamedTupleStub.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2000-2016 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.
+ */
+package com.jetbrains.python.psi.stubs;
+
+import com.jetbrains.python.psi.impl.stubs.CustomTargetExpressionStub;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.List;
+
+public interface PyNamedTupleStub extends CustomTargetExpressionStub {
+
+  @NotNull
+  String getName();
+
+  @NotNull
+  List<String> getFields();
+}