code: function (content, type) {
          (Description.isDescription(this.description) ? this.description : (this.description = new Description()))
              .update(content, type);
      }
docs: This function allows to describe the property for the purpose of detailed identification or documentation
  generation. This function sets or updates the `description` child-property of this property.
  
  @param {String} content The content of the description can be provided here as a string. Note that it is expected
  that if the content is formatted in any other way than simple text, it should be specified in the subsequent
  `type` parameter.
  @param {String=} [type="text/plain"] The type of the content can be one of the values mentioned in
  {@link Description.format} enumeration - namely `text/plain`, `text/markdown` or `text/html`.
  
  @example <caption>Add a description to an instance of Collection</caption>
  var Collection = require('postman-collection').Collection,
  mycollection;
  
  // create a blank collection
  myCollection = new Collection();
  myCollection.describe('Hey! This is a cool collection.');
  
  console.log(myCollection.description.toString()); // read the description