diff --git a/src/value/mod.rs b/src/value/mod.rs
index 0b27843..24ae5b0 100644
--- a/src/value/mod.rs
+++ b/src/value/mod.rs
@@ -7,15 +7,15 @@ use crate::common::{Brackets, ListSeparator, Op, QuoteKind};
 use crate::error::SassResult;
 use crate::unit::{Unit, UNIT_CONVERSION_TABLE};
 
-pub(crate) use sass_function::SassFunction;
 pub(crate) use map::SassMap;
 pub(crate) use number::Number;
+pub(crate) use sass_function::SassFunction;
 
-mod sass_function;
 mod map;
 mod number;
 mod ops;
 mod parse;
+mod sass_function;
 
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub(crate) enum Value {
diff --git a/src/value/sass_function.rs b/src/value/sass_function.rs
index f75f7f1..49cd21e 100644
--- a/src/value/sass_function.rs
+++ b/src/value/sass_function.rs
@@ -1,13 +1,13 @@
 //! SASS functions are those that are evaluated and return a value
-//! 
+//!
 //! SASS functions can be either user-defined or builtin.
-//! 
+//!
 //! User-defined functions are those that have been implemented in SASS
-//! using the @function rule. See the documentation of `crate::atrule::Function` 
+//! using the @function rule. See the documentation of `crate::atrule::Function`
 //! for more information.
-//! 
-//! Builtin functions are those that have been implemented in rust and are 
-//! in the global scope. 
+//!
+//! Builtin functions are those that have been implemented in rust and are
+//! in the global scope.
 
 use std::fmt;
 
@@ -21,7 +21,7 @@ use crate::value::Value;
 
 /// A SASS function
 /// See toplevel documentation for more information
-/// 
+///
 /// The function name is stored in addition to the body
 /// for use in the builtin function `inspect()`
 #[derive(Clone)]
@@ -32,7 +32,7 @@ pub(crate) enum SassFunction {
 
 impl SassFunction {
     /// Get the name of the function referenced
-    /// 
+    ///
     /// Used mainly in debugging and `inspect()`
     pub fn name(&self) -> &str {
         match self {
@@ -42,8 +42,8 @@ impl SassFunction {
     }
 
     /// Whether the function is builtin or user-defined
-    /// 
-    /// Used only in `std::fmt::Debug` for `SassFunction` 
+    ///
+    /// Used only in `std::fmt::Debug` for `SassFunction`
     fn kind(&self) -> &'static str {
         match &self {
             Self::Builtin(..) => "Builtin",