diff --git a/html_to_django/formatters/attr_formatter.py b/html_to_django/formatters/attr_formatter.py
index cccde21..a4025c9 100644
--- a/html_to_django/formatters/attr_formatter.py
+++ b/html_to_django/formatters/attr_formatter.py
@@ -1,8 +1,23 @@
+"""
+attr_formatter.py
+
+This module contains a function `format` that modifies a BeautifulSoup object in place.
+The function searches for all elements with the attribute "dj-attr".
+The value of "dj-attr" is expected to be a string with pairs of attributes and values separated by semicolons (;),
+and each pair separated by tildes (~). For each found element, it splits the "dj-attr" value into attribute-value pairs,
+formats the value into a Django template variable format (i.e., "{{ value }}"), and assigns it to the corresponding
+attribute of the element. After processing all attribute-value pairs, it removes the "dj-attr" attribute from
+the element.
+
+Example:
+    If an element is <div dj-attr="class;my-class~id;my-id"></div>,
+    after processing, it becomes <div class="{{ my-class }}" id="{{ my-id }}"></div>.
+"""
 from bs4 import BeautifulSoup
 
 
 def format(soup: BeautifulSoup) -> None:
     for element in soup.find_all(attrs={"dj-attr": True}):
-        for tag, value in [attr.split(";") for attr in element["dj-attr"].split("~")]:
-            element[tag] = f"{{{{ {value} }}}}"
+        for attribute, value in [pair.split(";") for pair in element["dj-attr"].split("~")]:
+            element[attribute] = f"{{{{ {value} }}}}"
         del element.attrs["dj-attr"]
diff --git a/html_to_django/formatters/block_formatter.py b/html_to_django/formatters/block_formatter.py
index 1d9363c..1526c10 100644
--- a/html_to_django/formatters/block_formatter.py
+++ b/html_to_django/formatters/block_formatter.py
@@ -1,3 +1,15 @@
+"""
+block_formatter.py
+
+This module contains a function `format` that modifies a BeautifulSoup object in place.
+The function searches for all elements with the attribute "dj-block". The value of "dj-block" is expected to be a
+string representing the name of a Django block. For each found element, it inserts Django block tags before and after
+the element, using the value of "dj-block" as the block name. Then it removes the "dj-block" attribute from the element.
+
+Example:
+    If an element is <div dj-block="content">Content</div>,
+    after processing, it becomes {% block content %}Content{% endblock %}.
+"""
 from bs4 import BeautifulSoup