Spring Security Return statement of the roleHierarchy method is omitted in the Reference

In the servelet/authorization/arcitecture reference, method return statement is omitted.

Current Reference Content

@Bean
static RoleHierarchy roleHierarchy() {
    var hierarchy = new RoleHierarchyImpl();
    hierarchy.setHierarchy("ROLE_ADMIN > ROLE_STAFF\n" +
            "ROLE_STAFF > ROLE_USER\n" +
            "ROLE_USER > ROLE_GUEST");
}

After Return statement is added

@Bean
static RoleHierarchy roleHierarchy() {
    RoleHierarchyImpl roleHierarchy = new RoleHierarchyImpl();
    hierarchy.setHierarchy("ROLE_ADMIN > ROLE_STAFF\n" +
            "ROLE_STAFF > ROLE_USER\n" +
            "ROLE_USER > ROLE_GUEST");
    return roleHierarchy;
}