diff --git a/src/officialeye/_internal/diffobject/difference_expansion.py b/src/officialeye/_internal/diffobject/difference_expansion.py
index c96a24d..da556f0 100644
--- a/src/officialeye/_internal/diffobject/difference_expansion.py
+++ b/src/officialeye/_internal/diffobject/difference_expansion.py
@@ -52,9 +52,9 @@ def _do_add(specification_dict: Dict[str, any],
                     continue
 
                 specification_entry = specification_dict[key]
-                current_value = current_dict[key] if key in current_dict else None  # corresponding value in `self._cur_object`
+                current_value = current_dict.get(key)  # corresponding value in `self._cur_object`
                 object_value = object_dict[key]  # corresponding value in `partial_object`
-                object_value_diff_mode = object_dict[f"${key}"] if f"${key}" in object_dict else None
+                object_value_diff_mode = object_dict.get(f"${key}", None)
 
                 full_key = f"{previous_keys}{key}"
 
diff --git a/src/officialeye/_internal/template/utils.py b/src/officialeye/_internal/template/utils.py
index 1626bce..6aacc59 100644
--- a/src/officialeye/_internal/template/utils.py
+++ b/src/officialeye/_internal/template/utils.py
@@ -11,6 +11,6 @@ def load_mutator_from_dict(mutator_dict: Dict[str, any], /) -> IMutator:
 
     mutator_id = mutator_dict["id"]
 
-    mutator_config = mutator_dict["config"] if "config" in mutator_dict else {}
+    mutator_config = mutator_dict.get("config", {})
 
     return get_internal_context().get_mutator(mutator_id, mutator_config)
diff --git a/src/officialeye/detection.py b/src/officialeye/detection.py
index 2158236..d6e4fce 100644
--- a/src/officialeye/detection.py
+++ b/src/officialeye/detection.py
@@ -2,4 +2,8 @@
 Module providing an API for all OfficialEye's document detection tools.
 """
 
+# disable unused imports ruff check
+# ruff: noqa: F401
+
 # noinspection PyProtectedMember
+from officialeye._api.detection import detect