armorProficiencies: {
    hvy: "PF1.Proficiency.Armor.heavy";
    lgt: "PF1.Proficiency.Armor.light";
    med: "PF1.Proficiency.Armor.medium";
    shl: "PF1.Proficiency.Armor.shield";
    twr: "PF1.Proficiency.Armor.tower";
} = ...

The set of Armor Proficiencies which a character may have