new(options={})public
Create an XML markup builder. Parameters are specified by an option hash.
| :target=>target_object: | Object receiving the markup. out must respond to the << operator. The default is a plain string target. |
| :indent=>indentation: | Number of spaces used for indentation. The default is no indentation and no line breaks. |
| :margin=>initial_indentation_level: | Amount of initial indentation (specified in levels, not spaces). |