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: hybrid.rs
    path of file: ./repos/artichoke/artichoke-backend/src/load_path
    
    the code of the file until where you have to start completion: use std::borrow::Cow;
use std::io;
use std::path::Path;

#[cfg(feature = "load-path-rubylib-native-file-system-loader")]
use artichoke_load_path::Rubylib;
use scolapasta_path::{is_explicit_relative, os_string
    
    pub fn is_required(&self, path: &Path) -> Option<bool> {
        if is_explicit_relative(path) {
            if let Some(required) = self.memory.is_required(path) {
                return Some(required);
            }
            return self.native.is_required(path);
        }
        if let Some(ref rubylib) = self.rubylib {
            if let Some(required) = rubylib.is_required(path) {
                return Some(required);
            }
        }
        if let Some(required) = self.memory.is_required(path) {
            Some(required)
        } else {
            self.native.is_required(path)
        }
    }