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module Morpher
class Evaluator
class Transformer < self
# Custom transformer with external injected behavior
class Custom < self
include Nullary::Parameterized, Transitive
register :custom
# Call transformer with input
#
# @param [Object]
#
# @return [undefinedo]
#
# @api private
#
def call(input)
param.first.call(input)
end
# Return inverse transformer
#
# @return [Evaluator::Transformer]
#
# @api private
#
def inverse
self.class.new(param.reverse)
end
end # Custom
end # Transformer
end # Evaluator
end # Morpher
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