Need a constant value for generic numbers.

src/types/document.rs

@@ -6,6 +6,7 @@ use super::Object;
 use super::PostBlank;
 use super::StandardProperties;
 use super::Timestamp;
+use crate::types::remove_trailing::RemoveTrailing;
 
 pub type PriorityCookie = u8;
 pub type HeadlineLevel = u16;
@@ -62,6 +63,10 @@ impl<'s> StandardProperties<'s> for Document<'s> {
     }
 
     fn get_contents<'b>(&'b self) -> Option<&'s str> {
+        let post_blank = self.get_post_blank();
+        let foo: RemoveTrailing<_, post_blank> =
+            RemoveTrailing::new(self.source.split_inclusive("\n"));
+        // self.source.split_inclusive("\n")
         todo!()
     }
 

src/types/mod.rs

@@ -6,6 +6,7 @@ mod greater_element;
 mod lesser_element;
 mod macros;
 mod object;
+mod remove_trailing;
 mod standard_properties;
 mod util;
 pub use affiliated_keyword::AffiliatedKeyword;