add a few comments in SDLoraManager

src/refiners/foundationals/latent_diffusion/lora.py

@@ -223,6 +223,8 @@ class SDLoraManager:
 
     @staticmethod
     def pad(input: str, /, padding_length: int = 2) -> str:
+        # make all numbers the same length so they sort correctly,
+        # e.g. foo.3.bar -> foo.03.bar
         new_split: list[str] = []
         for s in input.split("_"):
             if s.isdigit():
@@ -236,8 +238,14 @@ class SDLoraManager:
         # this dict might not be exhaustive
         suffix_scores = {"q": 1, "k": 2, "v": 3, "in": 3, "out": 4, "out0": 4, "out_0": 4}
         patterns = ["_{}", "_{}_lora"]
+
+        # apply patterns to the keys of suffix_scores
         key_char_order = {f.format(k): v for k, v in suffix_scores.items() for f in patterns}
+
+        # get the suffix and score for `key` (default: no suffix, highest score = 5)
         (sfx, score) = next(((k, v) for k, v in key_char_order.items() if key.endswith(k)), ("", 5))
+
+        # return tuple of: (padded key prefix, score)
         return (SDLoraManager.pad(key.removesuffix(sfx)), score)
 
     @staticmethod