Find out if a module includes a method.

include_method.rb

module C
  def bananas
    puts :Bananas!
  end
end

def include_method?(method, mod)
  if mod.methods.include? method
    puts "Module #{mod} has method #{method}"
    true
  else
    puts "Module #{mod} doesn't have method #{method}!"
    false
  end
end

include_method? :bananas, C
include_method? :trololol, C