diff --git a/nodes/animation.py b/nodes/animation.py
index 194282e..24db501 100644
--- a/nodes/animation.py
+++ b/nodes/animation.py
@@ -1,7 +1,7 @@
 from ..log import log
 
 
-class AnimationBuilder:
+class MTB_AnimationBuilder:
     """Simple maths for animation."""
 
     @classmethod
@@ -41,4 +41,4 @@ class AnimationBuilder:
         return (frame, scaled, raw_loop, (frame == (total_frames - 1)))
 
 
-__nodes__ = [AnimationBuilder]
+__nodes__ = [MTB_AnimationBuilder]
diff --git a/nodes/graph_utils.py b/nodes/graph_utils.py
index c6caea8..03f0049 100644
--- a/nodes/graph_utils.py
+++ b/nodes/graph_utils.py
@@ -76,6 +76,14 @@ class MTB_ToDevice:
 
 # class MTB_ApplyTextTemplate:
 class MTB_ApplyTextTemplate:
+    """
+    Experimental node to interpolate strings from inputs.
+
+    Interpolation just requires {}, for instance:
+
+    Some string {var_1} and {var_2}
+    """
+
     @classmethod
     def INPUT_TYPES(cls):
         return {