Is there any Design Pattern for calling object methods statically

Basically I am trying to make a library for handling files and directories.

The idea is there will be separate classes for FileFinding, FileReading, FileWriting etc.

What I am trying to search is there any design pattern to achieve something like :

There is just once class lets say

<?php namespace vendor/FileHandler;

 class FileHandler {}

Now in the library I have specific classes let say

<?php namespace vendor/FileHandler;

class FileFinder 
{
     /**
     * Find files by their types
     * 
     * @param string $path path to find files in.
     * @param mixed $type string or array of file type/types (extensions).
     * @return array array of file names.
     */
    public function findFilesByType($path, $type)
    {
        // do logic here.
        return $files;
    }
}

Now I want my library users to call the FileFinder::findFilesByType() by using the main class FileHandler::findFilesByType();

Please note: The FileFinder::findFilesByType() is not static method but I want it to be utilized as static method from class FileHanlder

Thanks