const iconMap = {
  angleDoubleRight: "angleDoubleRight.svg",
  angleRight: "angleRight.svg",
  assets: "assets.svg",
  barChart: "barChart.svg",
  cancel: "cancel.svg",
  chevronDown: "chevronDown.svg",
  dotChart: "dotChart.svg",
  dotMenu: "dotMenu.svg",
  horizontalDots: "horizontalDots.svg"
  //...
};

type IconMapMember = keyof typeof iconMap;
// type IconMapMember = "angleDoubleRight" | "angleRight" | "assets" | "barChart" 
// | "cancel" | "chevronDown" | "dotChart" | "dotMenu" | "horizontalDots" ...