class RuboCop::Cop::Rails::Delegate

def autocorrect(node)
  method_name, _args, body = *node
  delegation = ["delegate :#{body.method_name}",
                "to: :#{body.receiver.method_name}"]
  if method_name == prefixed_method_name(body)
    delegation << ['prefix: true']
  end
  lambda do |corrector|
    corrector.replace(node.source_range, delegation.join(', '))
  end
end