diff --git a/pythonbpf/debuginfo/dwarf_constants.py b/pythonbpf/debuginfo/dwarf_constants.py
index 0064afb..8bdbdf4 100644
--- a/pythonbpf/debuginfo/dwarf_constants.py
+++ b/pythonbpf/debuginfo/dwarf_constants.py
@@ -1,3 +1,9 @@
+"""
+DWARF debugging format constants.
+
+Generated constants from dwarf.h for use in debug information generation.
+"""
+
 # generated constants from dwarf.h
 
 DW_UT_compile = 0x01
diff --git a/pythonbpf/functions/return_utils.py b/pythonbpf/functions/return_utils.py
index c69e416..9fe670a 100644
--- a/pythonbpf/functions/return_utils.py
+++ b/pythonbpf/functions/return_utils.py
@@ -1,3 +1,10 @@
+"""
+Utility functions for handling return statements in BPF functions.
+
+Provides handlers for different types of returns including XDP actions,
+None returns, and standard returns.
+"""
+
 import logging
 import ast