ingle object, which may include a URI, a byte 
 stream (possibly with a specified encoding), a base URI, and/or a 
 character stream. 
 <p> The exact definitions of a byte stream and a character stream are 
 binding dependent. 
 <p> The application is expected to provide objects that implement this 
 interface whenever such objects are needed. The application can either 
 provide its own objects that implement this interface, or it can use the 
 generic factory method <code>DOMImplementationLS.createLSOutpu