modifier = {
  script = "modifiers/cirle/circle"
  description = "Intersecting circle modifier."
  field = "circle"
  display = "Circle"  //the display in the editor
  class = "Circle"    //The code generated name for the modifier API
  block = {           //The data for the modifier
    fields = [
      { name="radius" type="number" default=10 }
    ]
  }
}