def class_instrument_method(klass, method_to_instrument, event_name, payload={})
      class << klass; self; end.class_eval do
        Instrumentality.begin(self, method_to_instrument, event_name, payload)
      end
    end
def class_instrument_method(klass, method_to_instrument, event_name, payload={})
      class << klass; self; end.class_eval do
        Instrumentality.begin(self, method_to_instrument, event_name, payload)
      end
    end
Class implementation of +instrument_method+