Adding third party class in autoloading using composer

Hi,

Excuse me for my naive knowledge of OOP as well as phalcon. Here is the thing, there is a class provided by third party. I wanted to add it to phalcon via composer autoload. And then want to wrap it around my class so that if in future I change that third party, I don' thave to tinker lots of code.

I created my class and added to DI:

/**
 * Third Party api 
 */
$di->set('thirdpartyapi', function () {
    return new ThirdPartyApi();
});

I created my own ThirdPartyApi.php and class with same name in it.

Assuming, theirparty class name is "ThirdPartyProvider", I copied it to vender -> thirdpartyprovider ->src and added following its composer.json

This is folder structure under vendor :

{
    "name": "thirdpartyprovider/",
    "description": "A third party service",
    "autoload": {
        "psr-4": {
            "ThirdPartyProvier\\": "src/"
        }
    },

    "license": "MIT"
}

Content of ThirdPartyProvder.php

namespace ThirdPartyProvider;

class ThirdPartyProvider
{

    private $username;
    private $hash;
    private $apiKey;

    private $errorReporting = false;
            .
            .
            .
            .
            .
            }

Then I ran 'composer dump' to include autoload

Now if I call ThirdPartyApi.php , it fails to load ThirPartyProvider class. Clearly its not being loaded into my class.

Kindly advice how to add third party classes in phalcon with composr autloader.