Make as_str public
diff --git a/src/lib.rs b/src/lib.rs
index 541e070..d8a872d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -140,7 +140,7 @@
 }
 
 impl Symbol {
-    fn as_str(&self) -> &str {
+    pub fn as_str(&self) -> &str {
         &self.0
     }
 }