code: function Slot(name, elementId) {
    if (this.init_) {
      this.init_();
    }
    this.name = name;
    this.elementId = elementId;
    this.bidProviders = [];
    this.sizes = [];
  }
docs: Slot contains a definition of a publisher ad unit.
  
  @class
  @param {string} name the slot name
  @param {string} elementId target DOM element id for the slot
  @augments PubfoodObject
  @memberof pubfood#model