Implement statistics cookie.

src/wasm/statistics_cookie.rs

@@ -13,6 +13,7 @@ use crate::wasm::to_wasm::ToWasmStandardProperties;
 pub struct WasmStatisticsCookie {
     #[serde(flatten)]
     pub(crate) additional_properties: AdditionalProperties,
+    pub(crate) value: String,
 }
 
 to_wasm!(
@@ -21,12 +22,13 @@ to_wasm!(
     original,
     wasm_context,
     { WasmAstNode::StatisticsCookie(original) },
-    { "TODO".into() },
+    { "statistics-cookie".into() },
     {
         Ok((
             Vec::new(),
             WasmStatisticsCookie {
                 additional_properties: AdditionalProperties::default(),
+                value: original.value.to_owned(),
             },
         ))
     }