diff --git a/src/ifc5d/ifc5d/qto.py b/src/ifc5d/ifc5d/qto.py
index f73d5870c1..8fe9380518 100644
--- a/src/ifc5d/ifc5d/qto.py
+++ b/src/ifc5d/ifc5d/qto.py
@@ -24,6 +24,7 @@ import ifcopenshell.api.pset
 import ifcopenshell.util.unit
 import ifcopenshell.util.element
 import ifcopenshell.util.selector
+import ifcopenshell.util.shape
 import ifcopenshell.util.representation
 import multiprocessing
 from collections import namedtuple
diff --git a/src/ifcopenshell-python/ifcopenshell/api/pset/edit_pset.py b/src/ifcopenshell-python/ifcopenshell/api/pset/edit_pset.py
index 797f0afba3..6de7ca5f44 100644
--- a/src/ifcopenshell-python/ifcopenshell/api/pset/edit_pset.py
+++ b/src/ifcopenshell-python/ifcopenshell/api/pset/edit_pset.py
@@ -167,6 +167,9 @@ def edit_pset(
 
 
 class Usecase:
+    file: ifcopenshell.file
+    settings: dict[str, Any]
+
     def execute(self) -> None:
         self.update_pset_name()
         self.load_pset_template()
@@ -378,7 +381,7 @@ class Usecase:
                 properties.append(self.file.create_entity("IfcPropertySingleValue", **args))
         return properties
 
-    def assign_new_properties(self, props: ifcopenshell.entity_instance) -> None:
+    def assign_new_properties(self, props: list[ifcopenshell.entity_instance]) -> None:
         if hasattr(self.settings["pset"], "HasProperties"):
             self.settings["pset"].HasProperties = props
 
diff --git a/src/ifcopenshell-python/ifcopenshell/util/sequence.py b/src/ifcopenshell-python/ifcopenshell/util/sequence.py
index f476df5792..166a3c3674 100644
--- a/src/ifcopenshell-python/ifcopenshell/util/sequence.py
+++ b/src/ifcopenshell-python/ifcopenshell/util/sequence.py
@@ -36,7 +36,18 @@ RECURRENCE_TYPE = Literal[
 ]
 
 
-def derive_date(task, attribute_name, date=None, is_earliest=False, is_latest=False):
+def derive_date(
+    task: ifcopenshell.entity_instance,
+    attribute_name: str,
+    date=None,
+    is_earliest: bool = False,
+    is_latest: bool = False,
+):
+    """
+
+    :param task: IfcTask.
+
+    """
     if task.TaskTime:
         current_date = (
             ifcopenshell.util.date.ifc2datetime(getattr(task.TaskTime, attribute_name))