Windows: Typing - Remove type casts, add signature

Removes the needless `int` casts, and adds the return type to the
`get_session_id` method signature.

volatility3/framework/plugins/windows/modules.py

@@ -2,14 +2,14 @@
 # which is available at https://www.volatilityfoundation.org/license/vsl-v1.0
 #
 import logging
-from typing import List, Iterable, Generator
+from typing import Generator, Iterable, List
 
-from volatility3.framework import exceptions, interfaces, constants, renderers
+from volatility3.framework import constants, exceptions, interfaces, renderers
 from volatility3.framework.configuration import requirements
 from volatility3.framework.renderers import format_hints
 from volatility3.framework.symbols import intermed
 from volatility3.framework.symbols.windows.extensions import pe
-from volatility3.plugins.windows import pslist, pedump
+from volatility3.plugins.windows import pedump, pslist
 
 vollog = logging.getLogger(__name__)
 
@@ -183,12 +183,10 @@ class Modules(interfaces.plugins.PluginInterface):
                     # stores its session ID at offset 8 as an unsigned long, we
                     # create an unsigned long at that offset and use that
                     # instead.
-                    session_id = int(
-                        context.object(
-                            layer_name=layer_name,
-                            object_type=symbol_table + constants.BANG + "unsigned long",
-                            offset=proc.Session + 8,
-                        )
+                    session_id = context.object(
+                        layer_name=layer_name,
+                        object_type=symbol_table + constants.BANG + "unsigned long",
+                        offset=proc.Session + 8,
                     )
 
                 if session_id in seen_ids:

volatility3/framework/symbols/windows/extensions/__init__.py

@@ -797,7 +797,7 @@ class EPROCESS(generic.GenericIntelProcess, pool.ExecutiveObject):
 
         return renderers.UnreadableValue()
 
-    def get_session_id(self):
+    def get_session_id(self) -> Union[int, interfaces.renderers.BaseAbsentValue]:
         try:
             if self.has_member("Session"):
                 if self.Session == 0:
@@ -836,7 +836,7 @@ class EPROCESS(generic.GenericIntelProcess, pool.ExecutiveObject):
                         offset=self.Session + 8,
                         absolute=True,
                     )
-                    return int(session_id)
+                    return session_id
 
         except exceptions.InvalidAddressException:
             vollog.log(