document

Author: dugenkui03

src/type/validate.js

@@ -298,9 +298,11 @@ function validateFields(
           arg.astNode?.type,
         );
       }
+
+      // Ensure the argument must have a unique name
       if (knownArgNames[argName]) {
         context.reportError(
-          `There can be only one argument named "${argName}".`,
+          `There can be only one argument named ${argName}.`,
           field.astNode?.type,
         );
       } else {