Strategy pattern ruby

In Ruby implementation base class Strategy could be removed.

class Strategy
  def output(data)
    raise "Implement me"
  end
end

class TxtOutput < Strategy
  def output(data)
    puts data.inspect
  end
end

class ConsoleTxtOutput < Strategy
  def output(data)
    puts ">> #{data.inspect}"
  end
end

class SomeLogic
  attr_accessor :output_formatter
  
  def initialize(output_formatter)
    @output_formatter = output_formatter
  end
  
  def do_some_job
    @data = { "some" => "data", "here" => 10 }
  end
  
  def print_somewhere
    @output_formatter.output(@data)
  end
end

txt_output = TxtOutput.new
console_txt_outut = ConsoleTxtOutput.new

# Specify formatter dynamically
logic = SomeLogic.new(txt_output)
logic.do_some_job
logic.print_somewhere
# Specify formatter dynamically
logic.output_formatter = console_txt_outut
logic.print_somewhere