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unless defined?(::JSON::JSON_LOADED) and ::JSON::JSON_LOADED
require 'json'
end
defined?(::Set) or require 'set'
class Set
# Import a JSON Marshalled object.
#
# method used for JSON marshalling support.
def self.json_create(object)
new object['a']
end
# Marshal the object to JSON.
#
# method used for JSON marshalling support.
def as_json(*)
{
JSON.create_id => self.class.name,
'a' => to_a,
}
end
# return the JSON value
def to_json(*args)
as_json.to_json(*args)
end
end
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