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Puppet::Parser::Functions::newfunction(
:array_union,
:type => :rvalue,
:doc => "Unions two arrays
Example: array_union(['a','b'],['c']) -> ['a','b','c']"
) do |args|
raise Puppet::ParseError, 'array_union() needs two arguments' if args.length != 2
args[0].to_a | args[1].to_a
end
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