public function symbols($currencies = null)
    {
        if (func_num_args() and !is_array(func_get_args()[0])) {
            $currencies = func_get_args();
        }

        $this->symbols = $currencies;

        return $this;
    }
public function symbols($currencies = null)
    {
        if (func_num_args() and !is_array(func_get_args()[0])) {
            $currencies = func_get_args();
        }

        $this->symbols = $currencies;

        return $this;
    }
public function symbols ( $ currencies = null ) { if ( func_num_args ( ) and ! is_array ( func_get_args ( ) [ 0 ] ) ) { $ currencies = func_get_args ( ) ; } $ this -> symbols = $ currencies ; return $ this ; }
Sets the currencies to return.
Expects either a list of arguments or
a single argument as array

@param  array $currencies
@return Exchange
Sets the currencies to return . Expects either a list of arguments or a single argument as array