usingself.rb

#!/usr/bin/env ruby
# encoding: utf-8

class MyClass
  def testing
    @var = 10
    my_method
    self
  end

  def my_method
    @var = @var + 1
  end
end


# this works
puts MyClass.instance_methods(false)

#how can I do the same here
c = MyClass.new
c.instance_methods(false)   # => this does not work
c.methods.grep(/^my/)       # => sure this works but not what I want.