using System.Collections.Generic;
using System.IO;
using System;

public class RepositoryParserWorker
{
    // Define a delegate for the method
    public Func<string, IEnumerable<string>> Selector;

    public string[] dr;
    public int d;

    // Constructor
    public RepositoryParserWorker()
    {
        // Initialize Selector with a valid method (if needed)
        Selector = new Func<string, IEnumerable<string>>(WriteAuthentication);
    }

    // A method that matches the delegate signature
    public IEnumerable<string> WriteAuthentication(string file)
    {
        return Directory.GetFiles(this.dr[this.d], file, SearchOption.AllDirectories);
    }

    // Example of a method that uses the selector delegate
    public void ProcessFiles()
    {
        string[] fileArray = new string[] { "filePattern1", "filePattern2" };
        foreach (var file in fileArray)
        {
            // Using the selector delegate to process files
            var files = Selector(file);
            foreach (var f in files)
            {
                Console.WriteLine(f);
            }
        }
    }
}