name : Objective name, only used by the mission
designer.
amount: Amount of money to give to the NPC
to validate the objective.
hide_obj (Boolean): Prevent the step to be displayed
in the mission log.
npc_name : Tag of the NPC that the player
has to give money to.
overload_objective (Optional): Allow to set a specific a description of the mission. See text guidelines for the formatting
requirements.
roleplay_objective (Optional): Allow to add a description to the step.