Fix up typing and metadata usage.

volatility/framework/automagic/windows.py

@@ -315,7 +315,7 @@ class WintelStacker(interfaces.automagic.StackerLayerInterface):
             if arch not in ['Intel32', 'Intel64']:
                 return None
             # Set the layer type
-            layer_type = intel.WindowsIntel
+            layer_type = intel.WindowsIntel  # type: typing.Type
             if arch == 'Intel64':
                 layer_type = intel.WindowsIntel32e
             elif base_layer.metadata.get('pae', False):

volatility/framework/interfaces/configuration.py

@@ -588,7 +588,7 @@ class TranslationLayerRequirement(ConstructableRequirementInterface, Configurabl
             if value not in context.memory:
                 vollog.log(9, "IndexError - Layer not found in memory space: {}".format(value))
                 return [path_join(config_path, self.name)]
-            if self.oses and context.memory[value].os not in self.oses:
+            if self.oses and context.memory[value].metadata.get('os', None) not in self.oses:
                 vollog.log(9, "TypeError - Layer is not the required OS: {}".format(value))
                 return [path_join(config_path, self.name)]
             if (self.architectures and