system/Cache/Handlers/FileHandler.php
public function get(string $key)
	{
		$key = $this->prefix . $key;

		$data = $this->getItem($key);

		return is_array($data) ? $data['data'] : null;
	}
public function get(string $key)
	{
		$key = $this->prefix . $key;

		$data = $this->getItem($key);

		return is_array($data) ? $data['data'] : null;
	}
Attempts to fetch an item from the cache store.

@param string $key Cache item name

@return mixed