Update __init__.pyi signatures

Author: asvetlov

CHANGES.rst

@@ -1,8 +1,9 @@
-3.1.0 (2017-xx-xx)
+3.1.0 (2017-06-25)
 ------------------
 
 * Fix #99: raise `RuntimeError` on dict iterations if the dict was changed
 
+* Update `__init__.pyi` signatures
 
 3.0.0 (2017-06-21)
 ------------------

multidict/__init__.pyi

@@ -52,10 +52,23 @@ class MultiDict(MutableMapping[_S, _T], Generic[_T]):
     def __setitem__(self, key: _S, value) -> None: ...
     def __delitem__(self, key: _S) -> None: ...
     def setdefault(self, key: _S, default: _T=None) -> _T: ...
+
     @overload
     def pop(self, key: _S) -> _T: ...
     @overload
     def pop(self, key: _S, default: _T=...) -> _T: ...
+
+    @overload
+    def popone(self, key: _S) -> _T: ...
+    @overload
+    def popone(self, key: _S, default: _T=...) -> _T: ...
+
+    @overload
+    def popall(self, key: _S) -> List[_T]: ...
+    @overload
+    def popall(self, key: _S, default: _T=...) -> List[_T]: ...
+
+
     def popitem(self) -> Tuple[_S, _T]: ...