code: function(endpoint, query_string, callback){
      if(query_string && query_string.indexOf('&') !== 0)
        query_string = '&' + query_string;
      unirest.delete(this.baseurl + endpoint + '?access_token=' + this.token + (query_string || ''))
        .type('json')
        .end(function(response){
          if(!response.ok)
            return callback(new Error(
              'DELETE ' + endpoint + ' '+(response.code || (response.error && response.error.code))+
              ': ' + ((response.body && response.body.description) || response.error)
            ));
          return callback(false, response.body);
      });
    }
docs: !jsjsdoc
  
  doc.CoggleApi.delete = {
  $api: "private",
  $brief: "DELETE an endpoint on the Coggle API",
  $parameters: {
  endpoint: {
  $type: "String",
  $brief: "URL of endpoint to delete (relative to the domain)"
  },
  query_string: "Query string, if any.",
  callback: {
  $type: "Function",
  $brief: "Callback accepting (Error) that will be called "+
  "with the result.",
  }
  }
  }