add (overwrite with) mypy stubs, if available

stdlib/2.7/Queue.pyi

@@ -0,0 +1,29 @@
+# Stubs for Queue (Python 2)
+#
+# NOTE: This dynamically typed stub was automatically generated by stubgen.
+
+from typing import Any
+
+class Empty(Exception): ...
+class Full(Exception): ...
+
+class Queue:
+    maxsize = ... # type: Any
+    mutex = ... # type: Any
+    not_empty = ... # type: Any
+    not_full = ... # type: Any
+    all_tasks_done = ... # type: Any
+    unfinished_tasks = ... # type: Any
+    def __init__(self, maxsize: int = 0) -> None: ...
+    def task_done(self) -> None: ...
+    def join(self) -> None: ...
+    def qsize(self) -> int: ...
+    def empty(self) -> bool: ...
+    def full(self) -> bool: ...
+    def put(self, item: Any, block: bool = ..., timeout: float = None) -> None: ...
+    def put_nowait(self, item) -> None: ...
+    def get(self, block: bool = ..., timeout: float = None) -> Any: ...
+    def get_nowait(self) -> Any: ...
+
+class PriorityQueue(Queue): ...
+class LifoQueue(Queue): ...