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require 'active_support/hash_with_indifferent_access'
class Hash
# Returns an +ActiveSupport::HashWithIndifferentAccess+ out of its receiver:
#
# {:a => 1}.with_indifferent_access["a"] # => 1
#
def with_indifferent_access
hash = ActiveSupport::HashWithIndifferentAccess.new(self)
hash.default = self.default
hash
end
end
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