How to return all policies for a user's roles (e.g. [[data1, read], [data1, write]])?

hello how to return policies for roles?
example: [[data1, read], [data1, write]] (admin)

        e.AddPolicy("admin", "data1", "read")
        e.AddPolicy("admin", "data1", "write")
        e.AddPolicy("mod", "data1", "read")

        e.AddRoleForUser("alice", "admin")
        e.AddRoleForUser("bob", "mod")

        // Check the permission.
        if ok, _ := e.Enforce("alice", "data1", "read"); ok {
            log.Println("The permission check passed.")
        }

        roles, _ := e.GetRolesForUser("alice")
        fmt.Println("roles: ", roles)```

use implicit API