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: lib.rs
    path of file: ./repos/Ambient/crates/settings/src
    
    the code of the file until where you have to start completion: use ambient_native_std::asset_cache::SyncAssetKey;
use serde::{Deserialize, Serialize};

#[cfg(not(target_os = "unknown"))]
use std::path::PathBuf;

#[cfg(not(target_os = "unknown"))]
use anyhow::Context;

mod render;
pub use render::*;

mod general;
pub use general::*;

#[derive(Serialize, Deserialize, Clone, Default, Debug)]
pub struct Settings {
    #[serde(default)]
    pub general: GeneralSettings,
    pub render: RenderSettings,
}

#[cfg(not(target_os = "unknown"))]
impl Settings {
    pub fn load_from_file() -> anyhow::Result<Settings> {
        use std::io::ErrorKind;

        let path = Self::path()?;
        let settings = std::fs::read_to_string(&path);
        match settings {
            Ok(settings) => {
                Ok(match toml::from_str::<Settings>(&settings) {
                    Ok(settings) => {
                        #[cfg(not(any(target_os = "windows", target_os = "linux")))]
                        if settings.render.render_mode == Some(RenderMode::MultiIndirect) {
                            tracing::warn!("MultiIndirect render mode is not supported on this platform. Falling back to Indirect");
        
    
    pub fn load_from_file() -> anyhow::Result<Settings> {
        use std::io::ErrorKind;

        let path = Self::path()?;
        let settings = std::fs::read_to_string(&path);
        match settings {
            Ok(settings) => {
                Ok(match toml::from_str::<Settings>(&settings) {
                    Ok(settings) => {
                        #[cfg(not(any(target_os = "windows", target_os = "linux")))]
                        if settings.render.render_mode == Some(RenderMode::MultiIndirect) {
                            tracing::warn!("MultiIndirect render mode is not supported on this platform. Falling back to Indirect");
                            let mut settings = settings;
                            settings.render.render_mode = Some(RenderMode::Indirect);

                            let _ = settings.write_to_file(Some(path.clone()));

                            settings
                        } else {
                            settings
                        }
                        #[cfg(any(target_os = "windows", target_os = "linux"))]
                        {
                            settings
                        }
                    }
                    Err(err) => {
                        if let Ok(render) = toml::from_str::<RenderSettings>(&settings) {
                            // TEMP: Migrate old settings, which only had render settings,
                            // to the new format
                            let settings = Settings {
                                render,
                                ..Default::default()
                            };

                            settings.write_to_file(Some(path))?;

                            settings
                        } else {
                            return Err(err)
                                .with_context(|| format!("Failed to parse settings at {path:?}"));
                        }
                    }
                })
            }
            Err(e) if e.kind() == ErrorKind::NotFound => {
                let settings = Settings::default();
                settings.write_to_file(Some(path))?;
                Ok(settings)
            }
            Err(e) => Err(e).with_context(|| format!("Error reading settings file at {path:?}")),
        }
    }