diff --git a/daemon/core/config.py b/daemon/core/config.py
index 1f5bc3c0..d4ba6164 100644
--- a/daemon/core/config.py
+++ b/daemon/core/config.py
@@ -4,7 +4,7 @@ Common support for configurable CORE objects.
 
 import logging
 from collections import OrderedDict
-from typing import TYPE_CHECKING, Dict, List, Tuple, Type, Union
+from typing import TYPE_CHECKING, Any, Dict, List, Tuple, Type, Union
 
 from core.emane.nodes import EmaneNet
 from core.emulator.enumerations import ConfigDataTypes
@@ -136,7 +136,8 @@ class ConfigurableManager:
         """
         Clears all configurations or configuration for a specific node.
 
-        :param node_id: node id to clear configurations for, default is None and clears all configurations
+        :param node_id: node id to clear configurations for, default is None and clears
+            all configurations
         :return: nothing
         """
         if not node_id:
@@ -222,7 +223,7 @@ class ConfigurableManager:
             result = node_configs.get(config_type)
         return result
 
-    def get_all_configs(self, node_id: int = _default_node) -> List[Dict[str, str]]:
+    def get_all_configs(self, node_id: int = _default_node) -> Dict[str, Any]:
         """
         Retrieve all current configuration types for a node.
 
diff --git a/daemon/core/xml/corexml.py b/daemon/core/xml/corexml.py
index cb25e717..973eb77f 100644
--- a/daemon/core/xml/corexml.py
+++ b/daemon/core/xml/corexml.py
@@ -124,9 +124,9 @@ def add_configuration(parent: etree.Element, name: str, value: str) -> None:
 
 class NodeElement:
     def __init__(self, session: "Session", node: NodeBase, element_name: str) -> None:
-        self.session = session
-        self.node = node
-        self.element = etree.Element(element_name)
+        self.session: "Session" = session
+        self.node: NodeBase = node
+        self.element: etree.Element = etree.Element(element_name)
         add_attribute(self.element, "id", node.id)
         add_attribute(self.element, "name", node.name)
         add_attribute(self.element, "icon", node.icon)
@@ -151,8 +151,8 @@ class NodeElement:
 
 class ServiceElement:
     def __init__(self, service: Type[CoreService]) -> None:
-        self.service = service
-        self.element = etree.Element("service")
+        self.service: Type[CoreService] = service
+        self.element: etree.Element = etree.Element("service")
         add_attribute(self.element, "name", service.name)
         self.add_directories()
         self.add_startup()
@@ -268,10 +268,10 @@ class NetworkElement(NodeElement):
 
 class CoreXmlWriter:
     def __init__(self, session: "Session") -> None:
-        self.session = session
-        self.scenario = etree.Element("scenario")
-        self.networks = None
-        self.devices = None
+        self.session: "Session" = session
+        self.scenario: etree.Element = etree.Element("scenario")
+        self.networks: etree.SubElement = etree.SubElement(self.scenario, "networks")
+        self.devices: etree.SubElement = etree.SubElement(self.scenario, "devices")
         self.write_session()
 
     def write_session(self) -> None:
@@ -362,13 +362,11 @@ class CoreXmlWriter:
     def write_emane_configs(self) -> None:
         emane_global_configuration = create_emane_config(self.session)
         self.scenario.append(emane_global_configuration)
-
         emane_configurations = etree.Element("emane_configurations")
         for node_id in self.session.emane.nodes():
             all_configs = self.session.emane.get_all_configs(node_id)
             if not all_configs:
                 continue
-
             for model_name in all_configs:
                 config = all_configs[model_name]
                 logging.debug(
@@ -453,9 +451,6 @@ class CoreXmlWriter:
             self.scenario.append(node_types)
 
     def write_nodes(self) -> List[LinkData]:
-        self.networks = etree.SubElement(self.scenario, "networks")
-        self.devices = etree.SubElement(self.scenario, "devices")
-
         links = []
         for node_id in self.session.nodes:
             node = self.session.nodes[node_id]
@@ -472,7 +467,6 @@ class CoreXmlWriter:
 
             # add known links
             links.extend(node.all_link_data())
-
         return links
 
     def write_network(self, node: NodeBase) -> None:
@@ -597,8 +591,8 @@ class CoreXmlWriter:
 
 class CoreXmlReader:
     def __init__(self, session: "Session") -> None:
-        self.session = session
-        self.scenario = None
+        self.session: "Session" = session
+        self.scenario: Optional[etree.ElementTree] = None
 
     def read(self, file_name: str) -> None:
         xml_tree = etree.parse(file_name)
diff --git a/daemon/core/xml/corexmldeployment.py b/daemon/core/xml/corexmldeployment.py
index 5f340b69..04915bf1 100644
--- a/daemon/core/xml/corexmldeployment.py
+++ b/daemon/core/xml/corexmldeployment.py
@@ -101,9 +101,9 @@ def get_ipv4_addresses(hostname: str) -> List[Tuple[str, str]]:
 
 class CoreXmlDeployment:
     def __init__(self, session: "Session", scenario: etree.Element) -> None:
-        self.session = session
-        self.scenario = scenario
-        self.root = etree.SubElement(
+        self.session: "Session" = session
+        self.scenario: etree.Element = scenario
+        self.root: etree.SubElement = etree.SubElement(
             scenario, "container", id="TestBed", name="TestBed"
         )
         self.add_deployment()