You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: exception.rs
    path of file: ./repos/rust-raspberrypi-OS-tutorials/10_virtual_mem_part1_identity_mapping/src/_arch/aarch64
    
    the code of the file until where you have to start completion: // SPDX-License-Identifier: MIT OR Apache-2.0
//
// Copyright (c) 2018-2023 Andre Richter <andre.o.richter@gmail.com>

//! Architectural synchronous and asynchronous exception handling.
//!
//! # Orientation
//!
//! Since arch modules are imported into generic modules using the path attribut
    
pub fn current_privilege_level() -> (PrivilegeLevel, &'static str) {
    let el = CurrentEL.read_as_enum(CurrentEL::EL);
    match el {
        Some(CurrentEL::EL::Value::EL2) => (PrivilegeLevel::Hypervisor, "EL2"),
        Some(CurrentEL::EL::Value::EL1) => (PrivilegeLevel::Kernel, "EL1"),
        Some(CurrentEL::EL::Value::EL0) => (PrivilegeLevel::User, "EL0"),
        _ => (PrivilegeLevel::Unknown, "Unknown"),
    }
}