def paragraph(style=nil)
         node = ParagraphNode.new(self, style)
         yield node if block_given?
         self.store(node)
      end
def paragraph(style=nil)
         node = ParagraphNode.new(self, style)
         yield node if block_given?
         self.store(node)
      end
This method provides a short cut means of creating a paragraph command
 node. The method accepts a block that will be passed a single parameter
 which will be a reference to the paragraph node created. After the
 block is complete the paragraph node is appended to the end of the child
 nodes on the object that the method is called against.

 ==== Parameters
 style::  A reference to a ParagraphStyle object that defines the style
          for the new paragraph. Defaults to nil to indicate that the
          currently applied paragraph styling should be used.