[PATCH v3 13/13] qapi/introspect.py: Add docstring to _tree_to_qlit

[John Snow <jsnow@redhat.com>]

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
---
 scripts/qapi/introspect.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/scripts/qapi/introspect.py b/scripts/qapi/introspect.py
index 428397a6954..8d5b8513fc8 100644
--- a/scripts/qapi/introspect.py
+++ b/scripts/qapi/introspect.py
@@ -1,10 +1,11 @@
 """
 QAPI introspection generator
 
-Copyright (C) 2015-2018 Red Hat, Inc.
+Copyright (C) 2015-2020 Red Hat, Inc.
 
 Authors:
  Markus Armbruster <armbru@redhat.com>
+ John Snow <jsnow@redhat.com>
 
 This work is licensed under the terms of the GNU GPL, version 2.
 See the COPYING file in the top-level directory.
@@ -96,6 +97,13 @@ def __init__(self, value: _NodeT, ifcond: Iterable[str],
 def _tree_to_qlit(obj: TreeValue,
                   level: int = 0,
                   suppress_first_indent: bool = False) -> str:
+    """
+    Convert the type tree into a QLIT C string, recursively.
+
+    :param obj: The value to convert.
+    :param level: The indentation level for this particular value.
+    :param suppress_first_indent: True for dict value children.
+    """
 
     def indent(level: int) -> str:
         return level * 4 * ' '
-- 
2.26.2