Change "NoneType" to "None". Add missing imports.

python2/time.py

@@ -3,6 +3,8 @@
 # for a more percise manual annotation of this module.
 # Feel free to edit the source below, but remove this header when you do.
 
+from typing import List, Tuple, Dict, Undefined, GenericType
+
 def asctime(*args, **kwargs) -> str:
     raise ValueError()
 
@@ -18,15 +20,15 @@ def localtime(*args, **kwargs) -> tuple: pass
 def mktime(*args, **kwargs) -> float:
     raise OverflowError()
 
-def sleep(a: float) -> NoneType: pass
+def sleep(a: float) -> None: pass
 
 def strftime(a: str, *args, **kwargs) -> str:
-    raise ValueError()
     raise MemoryError()
+    raise ValueError()
 
 def strptime(*args, **kwargs) -> object: pass
 
 def time() -> float:
     raise IOError()
 
-def tzset() -> NoneType: pass
+def tzset() -> None: pass