diff --git a/my/core/query_range.py b/my/core/query_range.py
index 1ffeb1d..cbaedba 100644
--- a/my/core/query_range.py
+++ b/my/core/query_range.py
@@ -203,7 +203,7 @@ def _create_range_filter(
     the value to compare the range boundaries to. typically generated by _generate_order_by_func
 
     To force the values you're sorting by to be in some specified type,
-    this allows a 'conversion_func, which optionally converts the value
+    this allows a 'value_coercion_func', which optionally converts the value
     returned by attr_func to some shared type (see _datelike_to_float for an example)
     """
 
@@ -217,8 +217,9 @@ def _create_range_filter(
     if rn is None:
         return None
 
-    # destructure namedtuple
-    (after, before, within) = rn
+    after = rn.after
+    before = rn.before
+    within = rn.within
 
     # hmm... not sure how to correctly manage
     # inclusivity here? Is [after, before) currently,
@@ -351,15 +352,17 @@ Specify a type or a key to order the value by""")
                 # (seems like a lot?)
                 raise QueryException("Sorting by custom types is currently unsupported")
 
-            # use the created filter function in select (could be None if the user specified a RangeTuple
-            # like (None, None, None) somehow, but select handles that case
-            # apply leftover arguments from the user (limit, reverse)
+            # use the created filter function
             # we've already applied drop_exceptions and kwargs related to unsortable values above
             itr = select(itr, where=filter_func, limit=limit, reverse=reverse)
     else:
-        # wrap_unsorted may be used here if the user is just specifying an order_key
-        # and nothing else to order or filter range by
-        # i.e. none of the range-related code ran, this is just a select with a key
+        # wrap_unsorted may be used here if the user specified an order_key,
+        # or manually passed a order_value function
+        #
+        # this select is also run if the user didn't specify anything to
+        # order by, and is just returning the data in the same order as
+        # as the srouce iterable
+        # i.e. none of the range-related filtering code ran, this is just a select
         itr = select(itr,
                      order_by=order_by_chosen,
                      wrap_unsorted=wrap_unsorted,