require 'procto'

class Greeter
  include Procto.call

  def initialize(text)
    @text = text
  end

  def call
    "Hello #{text}"
  end
end

Greeter.call('world') # => "Hello world"

class Printer
  include Procto.call(:print)

  def initialize(text)
    @text = text
  end

  def print
    "Hello #{text}"
  end
end

Printer.call('world') # => "Hello world"