send_poem_strife_duel_defeat_notification_effect

send_poem_strife_duel_defeat_notification_effect = {
	# Send out toasts.
	hidden_effect = {
		# Send scope:actor-side toast
		scope:actor = {
			send_interface_toast = {
				title = send_poem_interaction.failure
				left_icon = scope:recipient
				show_as_tooltip = { send_poem_strife_duel_actor_failure_effect = yes }
			}
		}
		# Send scope:recipient-side toast.
		send_interface_toast = {
			title = send_poem_interaction.failure
			left_icon = scope:actor
			show_as_tooltip = { send_poem_strife_duel_actor_failure_effect = yes }
		}
	}
	# Calculate the actual effects.
	send_poem_strife_duel_actor_failure_effect = yes
}

As written in game/common/scripted_effects/00_poetry_effects.txt.