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+function = Puppet::Util::Reference.newreference :function, :doc => "All functions available in the parser" do
+ Puppet::Parser::Functions.functiondocs
+end
+function.header = "
+There are two types of functions in Puppet: Statements and rvalues.
+Statements stand on their own and do not return arguments; they are used for
+performing stand-alone work like importing. Rvalues return values and can
+only be used in a statement requiring a value, such as an assignment or a case
+statement.
+
+Here are the functions available in Puppet:
+
+"