code: function Describe(options, callback) {
      var self = this;
      Joi.validate(options, schema, function(err, options) {
          if (err) {
              throw err;
          }
          self.options = options;
      });
  
      var queryOptions = {
          query : 'DESCRIBE ' + self.options.table
      };
  
      Query.call(this, queryOptions, callback);
  }
docs: Provides the Describe class, its builder, and its response.
  @module TS
   
  Command used to get a timeseries table's description.
  
  As a convenience, a builder class is provided:
  
  var storeValue = new Describe.Builder()
  .withTable('GeoCheckin')
  .withCallback(callback)
  .build();
  
  See {{#crossLink "Describe.Builder"}}Describe.Builder{{/crossLink}}
  
  @class Describe
  @constructor
  @param {Object} options The options for this command.
  @param {String} options.table The timeseries table in Riak.
  @param {Function} callback The allback to be executed when the operation completes.
  @param {String} callback.err An error message. Will be null if no error.
  @param {Object} callback.response Object containing timeseries table metadata.
  @param {Object} callback.response.columns Timeseries table metadata columns.
  @param {Object} callback.response.rows Timeseries table metadata rows.
  @param {Object} callback.data additional error data. Will be null if no error.
  @extends Query