code: function( options, callback ) {
  
      var self = this
      var url = '/flightstatus/rest/v2/json/flightsNear/' + options.coords.join( '/' )
  
      var extensions = []
  
      if( Array.isArray( options.extendedOptions ) ) {
        extensions = extensions.concat( options.extendedOptions )
      }
  
      return this._clientRequest({
        url: url,
        extendedOptions: extensions,
        qs: {
          sourceType: options.sourceType, // raw|derived|all
          maxFlights: options.maxFlights,
        }
      }, function( error, data ) {
        callback.call( self, error, data )
      })
  
    }
docs: Get flights within a given bounding box (lat,lng,lat,lng)
  @param {Object} options
  @param {Array} options.coords [lat,lng,lat,lng]
  @param {String} options.sourceType (raw|derived|all)
  @param {Number} options.maxFlights
  @param {Array<String>} [options.extendedOptions]
  @param {Function} callback
  @return {Request}