tribute_mission_decision_effect

tribute_mission_decision_effect = {
	if = {
		#Are you a tributary of a Hegemon?
		limit = { subject_standing >= 0 }
		if = {
			limit = { is_tributary = yes }
			#If it's China, flavorize Imperial Grace
			if = {
				limit = { suzerain = { primary_title = title:h_china } }
				custom_tooltip = tribute_mission_interaction_anticipated_rewards_tt_imperial_grace
			}
			#Else standard stuff
			else = {
				custom_tooltip = tribute_mission_interaction_anticipated_rewards_tt_generic_hegemon
			}
		}
	}
	else = {
		if = {
			limit = { $TARGET$ = { primary_title = title:h_china } }
			custom_tooltip = tribute_mission_interaction_anticipated_rewards_tt_china
		}
		else_if = {
			limit = { $TARGET$ = { primary_title = title:h_roman_empire } }
			custom_tooltip = tribute_mission_interaction_anticipated_rewards_tt_roman_empire
		}
		else_if = {
			limit = { $TARGET$ = { primary_title = title:h_eastern_roman_empire } }
			custom_tooltip = tribute_mission_interaction_anticipated_rewards_tt_eastern_roman_empire
		}
		else_if = {
			limit = { $TARGET$ = { primary_title = title:h_dar_al_islam } }
			custom_tooltip = tribute_mission_interaction_anticipated_rewards_tt_dar_al_islam
		}
		else_if = {
			limit = { $TARGET$ = { primary_title = title:h_india } }
			custom_tooltip = tribute_mission_interaction_anticipated_rewards_tt_india
		}
		else = { custom_tooltip = tribute_mission_interaction_anticipated_rewards_tt }
	}

	hidden_effect = { 
		tribute_mission_clean_up_variables_effect = yes

		if = {
			limit = { is_tributary = yes }
			suzerain = { 
				save_scope_as = tribute_mission_target
				add_character_flag = {
					flag = pay_tribute_cooldown
					years = 3
				}
			}
		}
		else = {
			 $TARGET$ = {
				save_scope_as = tribute_mission_target
			}
		}

		set_variable = { # persist for later interactions
			name = tribute_mission_target_scope
			value = scope:tribute_mission_target
		}
	}
	# not all tribute decisions have this option
	if = {
		limit = { NOT = { exists = scope:tribute_mission_bunga_mas } }
		save_temporary_scope_value_as = { name = tribute_mission_bunga_mas value = no }
	}

	#Your Suzerain requested this specifically
	if = {
		limit = {	
			has_variable = requested_tribute_mission
			is_ai = yes
		}
		switch = {
			trigger = has_variable
			requested_tribute_mission_type_gold = { # Gold
				run_interaction = {
					interaction = tribute_mission_gold_interaction
					actor = root
					recipient = scope:tribute_mission_target
					execute_threshold = accept
				}
			}
			requested_tribute_mission_type_herd = { # Herd
				run_interaction = {
					interaction = tribute_mission_herd_interaction
					actor = root
					recipient = scope:tribute_mission_target
					execute_threshold = accept
				}
			}
			requested_tribute_mission_type_artifact = { # Artifact
				var:predetermined_artifact_tribute ?= { save_scope_as = predetermined_artifact_tribute_scope }
				#Do the things from the interaction
				scope:predetermined_artifact_tribute_scope = {
					set_variable = is_tribute_mission_artifact
				}
				#Save the Artifact
				set_variable = {
					name = tribute_mission_type
					value = flag:artifact_tribute
				}
				set_variable = {
					name = offered_artifact
					value = scope:predetermined_artifact_tribute_scope
				}
				#Travel
				tribute_mission_set_up_tribute_travel_effect = yes
			}
			requested_tribute_mission_type_concubine = { # Concubine
				var:predetermined_concubine_tribute ?= { 
					save_scope_as = predetermined_concubine_tribute_scope 
				}
				scope:predetermined_concubine_tribute_scope = {
					add_character_flag = {
						flag = cannot_be_diarch # just enough to make sure they don't succeed to the diarchy while en route

As written in game/common/scripted_effects/tgp_tribute_mission_scripted_effects.txt.