Help for create NPC

If you open Entity.php you can see the base NBT for creating the entity. In turn, I want to spawn the NPC.
I found a ready-made code to spawn the NPC, but I don't know where to get these NBT tags such as "Skin". I would like to get the entire list of tags and find out how to set displayname npc thx)

Spoiler: Entity.php

PHP:

/**
     * Helper function which creates minimal NBT needed to spawn an entity.
     */
    public static function createBaseNBT(Vector3 $pos, ?Vector3 $motion = null, float $yaw = 0.0, float $pitch = 0.0) : CompoundTag{
        return new CompoundTag("", [
            new ListTag("Pos", [
                new DoubleTag("", $pos->x),
                new DoubleTag("", $pos->y),
                new DoubleTag("", $pos->z)
            ]),
            new ListTag("Motion", [
                new DoubleTag("", $motion !== null ? $motion->x : 0.0),
                new DoubleTag("", $motion !== null ? $motion->y : 0.0),
                new DoubleTag("", $motion !== null ? $motion->z : 0.0)
            ]),
            new ListTag("Rotation", [
                new FloatTag("", $yaw),
                new FloatTag("", $pitch)
            ])
        ]);
    }

Spoiler: code

PHP:

public function spawnNPC(Player $player){
        $nbt = new CompoundTag("", [
            new ListTag("Pos", [
                new DoubleTag("", $player->getX()),
                new DoubleTag("", $player->getY()),
                new DoubleTag("", $player->getZ())
            ]),
            new ListTag("Motion", [
                new DoubleTag("", 0),
                new DoubleTag("", 0),
                new DoubleTag("", 0)
            ]),
            new ListTag("Rotation", [
                new FloatTag("", $player->getYaw()),
                new FloatTag("", $player->getPitch())
            ]),
            new CompoundTag("Skin", [
                new StringTag("Data", $player->getSkin()->getSkinData()),
                new StringTag("Name", $player->getSkin()->getSkinId()),
            ])
        ]);
        $npc = new Human($player->getLevel(), $nbt);
        foreach($this->getServer()->getOnlinePlayers() as $plr) {
            $npc->spawnTo($plr);
        }
    }

 

use this.

PHP:

<?php
/*
* Created by PhpStorm
*
* User: zOmArRD
* Date: 11/8/2021
*
* Copyright © 2021 - All Rights Reserved.
*/
namespace here;

use pocketmine\entity\Human;
use pocketmine\entity\Skin;
use pocketmine\nbt\tag\CompoundTag;
use pocketmine\nbt\tag\DoubleTag;
use pocketmine\nbt\tag\FloatTag;
use pocketmine\nbt\tag\ListTag;
use pocketmine\nbt\tag\StringTag;
use pocketmine\Player;

class Example
{
    public function spawnHuman(Player $player): void
    {
        $position = $player->getPosition();
        $plSkinData = $player->getSkin();
        $nbt = new CompoundTag("", [
            new ListTag("Pos", [
                new DoubleTag("", $position->getX()),
                new DoubleTag("", $position->getY()),
                new DoubleTag("", $position->getZ())
            ]),
            new ListTag("Motion", [
                new DoubleTag("", 0),
                new DoubleTag("", 0),
                new DoubleTag("", 0)
            ]),
            new ListTag("Rotation", [
                new FloatTag("", $player->getYaw()),
                new FloatTag("", $player->getPitch())
            ]),
            new CompoundTag("Skin", [
                new StringTag("Data", $plSkinData->getSkinData()),
                new StringTag("Name", $plSkinData->getSkinId()),
            ]),
        ]);
        $human = new Human($player->getLevel(), $nbt);
        $human->setScale(1);
        $human->setSkin(new Skin($player->getName(), $plSkinData->getSkinData(), $plSkinData->getCapeData(), $plSkinData->getGeometryName(), $plSkinData->getGeometryData()));
        $human->setNametagVisible(true);
        $human->setNameTagAlwaysVisible(true);
        $human->setImmobile(true);
        $human->spawnToAll();
    }
}