+# @summary Specifies a custom Apt configuration file.
+#
+# @param content
+# Required unless `ensure` is set to 'absent'. Directly supplies content for the configuration file.
+#
+# @param ensure
+# Specifies whether the configuration file should exist. Valid options: 'present' and 'absent'.
+#
+# @param priority
+# Determines the order in which Apt processes the configuration file. Files with lower priority numbers are loaded first.
+# Valid options: a string containing an integer or an integer.
+#
+# @param notify_update
+# Specifies whether to trigger an `apt-get update` run.
+#