gistfile1.php

<?php
namespace Some\Name\Space;

use Some\Other\Name\Space\SomeOtherMybeAbstractClass;
use Some\Other\Name\Space\SomeInterface;
use Some\Other\Name\Space\SomeMixinTrait;
use Some\Other\Name\Space\RequestInterface;
use Some\Other\Name\Space\ResponseInterface;

class MyClass extends SomeOtherMybeAbstractClass implements SomeInterface {
  use SomeMixinTrait;
  
  /**
   * @param array $listOfSomething
   * @param RequestInterface $request
   * @return ResponseInterface
   */
  public function someMethod(array $listOfSomething, RequestInterface $request) {
    /* do something here */
  }
}