Predis\Connection\Parameters::create PHP Method

    public static function create($parameters)
    {
        if (is_string($parameters)) {
            $parameters = static::parse($parameters);
        }
        return new static($parameters ?: array());
    }

 /**
  * Creates an instance of connection parameters.
  *
  * @param mixed $parameters Connection parameters.
  *
  * @return ParametersInterface
  */
 protected function createParameters($parameters)
 {
     if ($parameters instanceof ParametersInterface) {
         return $parameters;
     }
     return Parameters::create($parameters);
 }