Compare scheduled, deadline, and closed.

src/types/lesser_element.rs

@@ -1,6 +1,7 @@
 use super::object::Object;
 use super::PlainText;
 use super::StandardProperties;
+use super::Timestamp;
 
 #[derive(Debug)]
 pub struct Paragraph<'s> {
@@ -72,6 +73,9 @@ pub struct DiarySexp<'s> {
 #[derive(Debug)]
 pub struct Planning<'s> {
     pub source: &'s str,
+    pub scheduled: Option<Timestamp<'s>>,
+    pub deadline: Option<Timestamp<'s>>,
+    pub closed: Option<Timestamp<'s>>,
 }
 
 #[derive(Debug)]