1 files changed, 4 insertions, 0 deletions
diff --git a/crates/shirabe-php-shim/src/lib.rs b/crates/shirabe-php-shim/src/lib.rs
index 758dd1c..56b29e5 100644
--- a/crates/shirabe-php-shim/src/lib.rs
+++ b/crates/shirabe-php-shim/src/lib.rs
@@ -220,6 +220,10 @@ impl PharData {
     }
 }
 
+pub trait JsonSerializable {
+    fn json_serialize(&self) -> PhpMixed;
+}
+
 pub fn class_exists(name: &str) -> bool {
     todo!()
 }