Config::set

public function set(string $name, $value) : IConfig
{
	$field = static::getField($name);
	if($field::available())
	{
		if($field::checkValue($value = $field::prepareValue($value)))
		{
			$this->value[$name] = $value;
			return $this;
		}
		throw new Exception\InvalidFieldValue("$name");
	}
	return $this;
}