diff --git a/packages/warning/babel-plugin.js b/packages/warning/babel-plugin.js
index 6e83e909b41852..4eca0896d74655 100644
--- a/packages/warning/babel-plugin.js
+++ b/packages/warning/babel-plugin.js
@@ -3,6 +3,14 @@
  */
 const pkg = require( './package.json' );
 
+/**
+ * Babel plugin which transforms `warning` function calls to wrap within a
+ * condition that checks if `process.env.NODE_ENV !== 'production'`.
+ *
+ * @param {import('@babel/core')} babel Current Babel object.
+ *
+ * @return {import('@babel/core').PluginObj} Babel plugin object.
+ */
 function babelPlugin( { types: t } ) {
 	const seen = Symbol();
 
diff --git a/tsconfig.json b/tsconfig.json
index a1854349a9d95d..6e74bf45066430 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -38,7 +38,8 @@
 		"./packages/is-shallow-equal/**/*.js",
 		"./packages/priority-queue/**/*.js",
 		"./packages/token-list/**/*.js",
-		"./packages/url/**/*.js"
+		"./packages/url/**/*.js",
+		"./packages/warning/**/*.js",
 	],
 	"exclude": [
 		"./packages/*/benchmark",