class REXML::Parsers::PullEvent

def initialize(arg)

:notationdecl, :entity, :cdata, :xmldecl, or :error.
:processing_instruction, :comment, :doctype, :attlistdecl, :entitydecl,
The type of this event. Will be one of :tag_start, :tag_end, :text, 
def initialize(arg)
  @contents = arg
end