=> capture_args 1
=> sub { $REQ{user} = $_[2] };
-get ''
+get q{}
=> chained '_set_user'
=> args 0
=> sub { $REQ{user_end} = $REQ{user} };
=> capture_args 1
=> sub { $REQ{thing} = $_[2] };
-get ''
+get q{}
=> chained '_set_thing'
=> args 0
=> sub { $REQ{thing_end} = $REQ{thing} };