respond_to_missing?

# File lib/delegate.rb, line 95
  def respond_to_missing?(m, include_private)
    r = true
    target = self.__getobj__ {r = false}
    r &&= target.respond_to?(m, include_private)
    if r && include_private && !target.respond_to?(m, false)
      warn "delegator does not forward private method \##{m}", uplevel: 3
      return false
    end
    r
  end