on_actions = {
    on_unit_leader_level_up = {   #BMI系统机制
		effect = {
			if = {
				limit = {
					root = {
						has_trait = bmi_device
						NOT = {
							has_trait = bmi_has_worked
						}
					}
				}
				set_temp_variable = {
					now_level_up_yuzu_leader = root
				}
				from = {
					every_army_leader = {
						limit = {
							has_trait = bmi_device
							NOT = {
								has_trait = bmi_has_worked
								check_variable = {
									var = now_level_up_yuzu_leader
									value = this
									compare = equals
								}
							}
						}
						add_timed_unit_leader_trait = {
							trait = bmi_has_worked
							days = 1
						}
						add_skill_level = 1
						#add_max_trait = 1
						
					}
				}
			}
		}
	}
}