src/getjump/Vk/Response/Response.php
public function get($id = false)
    {
        if (!$id) {
            if (is_array($this->data)) {
                return $this->data[0];
            } elseif (isset($this->items) && $this->items !== false) {
                return $this->items[0];
            } else {
                return $this->data;
            }
        } else {
            return $this->data[$id];
        }
    }
public function get($id = false)
    {
        if (!$id) {
            if (is_array($this->data)) {
                return $this->data[0];
            } elseif (isset($this->items) && $this->items !== false) {
                return $this->items[0];
            } else {
                return $this->data;
            }
        } else {
            return $this->data[$id];
        }
    }
This method will return one element if id is not specified or element of array otherwise.

@param bool|int $id

@return mixed