src/Contact/Contacts.php
public function put($key, $value)
    {
        $value = $this->format($value);

        return parent::put($key, $value);
    }
public function put($key, $value)
    {
        $value = $this->format($value);

        return parent::put($key, $value);
    }
存储时处理emoji.

@param mixed $key
@param mixed $value

@return Collection