diff --git a/netbox/netbox/search/__init__.py b/netbox/netbox/search/__init__.py
index 5b14e9ee1..5c090db8c 100644
--- a/netbox/netbox/search/__init__.py
+++ b/netbox/netbox/search/__init__.py
@@ -26,21 +26,19 @@ class SearchIndex:
 
     Attrs:
         model: The model class for which this index is used.
+        category: The label of the group under which this indexer is categorized (for form field display). If none,
+            the name of the model's app will be used.
+        fields: An iterable of two-tuples defining the model fields to be indexed and the weight associated with each.
     """
     model = None
+    category = None
     fields = ()
 
-    @classmethod
-    def get_category(cls):
-        """
-        Return the title of the search category under which this model is registered.
-        """
-        if hasattr(cls, 'category'):
-            return cls.category
-        return cls.model._meta.app_config.verbose_name
-
     @staticmethod
     def get_field_type(instance, field_name):
+        """
+        Return the data type of the specified model field.
+        """
         field_cls = instance._meta.get_field(field_name).__class__
         if issubclass(field_cls, (models.FloatField, models.DecimalField)):
             return FieldTypes.FLOAT
@@ -50,10 +48,26 @@ class SearchIndex:
 
     @staticmethod
     def get_field_value(instance, field_name):
+        """
+        Return the value of the specified model field as a string.
+        """
         return str(getattr(instance, field_name))
 
+    @classmethod
+    def get_category(cls):
+        return cls.category or cls.model._meta.app_config.verbose_name
+
     @classmethod
     def to_cache(cls, instance, custom_fields=None):
+        """
+        Return a list of ObjectFieldValue representing the instance fields to be cached.
+
+        Args:
+            instance: The instance being cached.
+            custom_fields: An iterable of CustomFields to include when caching the instance. If None, all custom fields
+                defined for the model will be included. (This can also be provided during bulk caching to avoid looking
+                up the available custom fields for each instance.)
+        """
         values = []
 
         # Capture built-in fields