Add missing dartfmt --fix lint
diff --git a/pkgs/stream_channel/analysis_options.yaml b/pkgs/stream_channel/analysis_options.yaml
index 1e02731..df4128a 100644
--- a/pkgs/stream_channel/analysis_options.yaml
+++ b/pkgs/stream_channel/analysis_options.yaml
@@ -11,4 +11,5 @@
   rules:
     - annotate_overrides
     - comment_references
+    - prefer_generic_function_type_aliases
     - prefer_typing_uninitialized_variables