diff --git a/utils/utils.py b/utils/utils.py
index d2ee0f8..b17e9aa 100644
--- a/utils/utils.py
+++ b/utils/utils.py
@@ -14,7 +14,9 @@
 from utils.cam import grad_cam, grad_cam_plusplus
 
 
-def load_network(network_name: str) -> Tuple[
+def load_network(
+    network_name: str,
+) -> Tuple[
     tf.keras.Model,
     Tuple[int, int],
     tf.keras.layers.Layer,
@@ -190,6 +192,14 @@ def draw_heatmap(
 
 
 def guided_bp_map_postprocessing(guided_bp_map: np.array) -> np.array:
+    """Function that applies postprocessing to a given guided backpropagation map
+
+    Arguments:
+        guided_bp_map (np.array): The guided backpropagation map
+
+    Returns:
+        guided_bp_map (np.array): The postprocessed guided backpropagation map
+    """
 
     # Center on 0 with std 0.25
     guided_bp_map -= guided_bp_map.mean()