pw_log_tokenized: Python class for log metadata

Change-Id: I306762cf8869776ec3db148b0ec6899ba6db7cde
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/37322
Commit-Queue: Wyatt Hepler <hepler@google.com>
Reviewed-by: Keir Mierle <keir@google.com>
diff --git a/pw_log_tokenized/BUILD.gn b/pw_log_tokenized/BUILD.gn
index a3151a5..1feee29 100644
--- a/pw_log_tokenized/BUILD.gn
+++ b/pw_log_tokenized/BUILD.gn
@@ -96,4 +96,5 @@
 
 pw_doc_group("docs") {
   sources = [ "docs.rst" ]
+  other_deps = [ "py" ]
 }