| AbstractRenderer | 
 This is a simple base class for a renderer. 
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| DiagnosticJsonRenderer | 
 A diagnostic version of the JsonRenderer that includes the block name in the
 generated JSON. 
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| JsonRenderer | 
 This class is used to render the contents of a Block in
 JavaScript Object Notation (JSON) format. 
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| XmlRenderer | 
 This class is the renderer that converts a Block tree into XML Element Normal
 Form. 
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| XmlRendererANF | 
 This class is the renderer that converts a Block tree into XML Attribute Normal
 Form. 
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| XmlRendererBlockVisitorANF | 
 
 This class renders a Block tree in XML format, specifically Attribute Normal
 Form, where the scalar properties are represented as attributes. 
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| XmlRendererBlockVisitorENF | 
 
 This class renders a Block tree in XML format, specifically Element Normal
 Form, where the scalar properties are not represented as attributes, but as
 elements (with the name of the property defining the name of the element). 
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