Update docs/source-2.0/guides/client-guidance/identity-auth/index.md

Co-authored-by: Jordon Phillips <JordonPhillips@users.noreply.github.com>

Author: lucix-aws

docs/source-2.0/guides/client-guidance/identity-auth/index.md

@@ -232,7 +232,7 @@ public void resolveAuthScheme(OperationContext ctx) {
 private void selectAuthScheme(OperationContext ctx, List<AuthSchemeOption> options) {
     MyServiceClientConfig config = ctx.clientConfig();
 
-    for (AuthScheme option : options) {
+    for (AuthSchemeOption option : options) {
         // condition 1: the client has an auth scheme with an id matching the
         // one of this option
         AuthScheme<?, ?> found = ctx.getAuthSchemes().stream()