Request had insufficient authentication scopes after trying create Schema for google workspace directory with golang client

I tried to create Schema for the google workspace directory with golang client,
with this code:

	config, err := google.ConfigFromJSON(b, admin.AdminDirectoryUserReadonlyScope, admin.AdminDirectoryUserScope,
		admin.AdminDirectoryCustomerScope, admin.AdminDirectoryCustomerReadonlyScope)
	if err != nil {
		log.Fatalf("Unable to parse client secret file to config: %v", err)
	}
	srv, err := admin.NewService(ctx, option.WithHTTPClient(client))
	if err != nil {
		log.Fatalf("Unable to retrieve directory Client %v", err)
	}

	schemaCall := srv.Schemas.Insert("C03uwpzz5", &admin.Schema{
		Fields: []*admin.SchemaFieldSpec{
			{
				DisplayName: "Display Name",
				FieldName:   "EmployeeNumber",
				FieldType:   "STRING",
				MultiValued: false,
			},
		},
	})
	_, errDo := schemaCall.Do()
	if errDo != nil {
		log.Fatalf("Unable to retrieve directory Client %v", errDo)
	}

the reference of this code are these topics:

1. https://developers.google.com/admin-sdk/directory/v1/guides/manage-schemas#create_schema

2. https://developers.google.com/admin-sdk/directory/v1/quickstart/go

but each time I'm receiving this error

2023/02/16 00:38:11 Unable to retrieve directory Client googleapi: Error 403: Request had insufficient authentication scopes.
Details:
[
  {
    "@type": "type.googleapis.com/google.rpc.ErrorInfo",
    "domain": "googleapis.com",
    "metadata": {
      "method": "ccc.hosted.frontend.directory.v1.DirectorySchemas.Insert",
      "service": "admin.googleapis.com"
    },
    "reason": "ACCESS_TOKEN_SCOPE_INSUFFICIENT"
  }
]

More details:
Reason: insufficientPermissions, Message: Insufficient Permission

I tried all related scopes and unfortunately I could not fin the right one.

I found the correct scope.
It's https://www.googleapis.com/auth/admin.directory.userschema