check

runtime/Stdlib_Symbol.res

@@ -1,7 +1,7 @@
 type t
 
 @val external make: string => t = "Symbol"
-@val external getFor: string => t = "Symbol.for"
+@val external getFor: string => option<t> = "Symbol.for"
 @val external keyFor: t => option<string> = "Symbol.keyFor"
 @get
 external description: t => option<string> = "description"

runtime/Stdlib_Symbol.resi

@@ -32,7 +32,7 @@ Otherwise a new Symbol gets created and registered with key.
 ## Examples
 
 ```rescript
-Symbol.getFor("foo")->assetEqual("foo")
+Symbol.getFor("sym1")->assetEqual(Symbol.getFor("sym1"))
 ```
 */
 @val
@@ -48,13 +48,11 @@ Retrieves a shared Symbol key from the global Symbol registry for the given Symb
 ```rescript
 let globalSym = Symbol.getFor("sym1") // Global symbol
 
-Console.log(Symbol.keyFor(globalSym))
-// Expected output: "sym1"
+Symbol.keyFor(globalSym)->assertEqual(Some("sym1"))
 
 let localSym = Symbol.make("sym2") // Local symbol
 
-Console.log(Symbol.keyFor(localSym))
-// Expected output: undefined
+Symbol.keyFor(localSym)->assertEqual(None)
 ```
 */
 @val