code: function(pokedexNumber, fn) {
      if (!pokedexNumber || (typeof pokedexNumber !== 'number' &&
          typeof pokedexNumber !== 'string')) {
        return fn('Error getting Pokemon. You did not specify the ' +
          'national pokedex number of the Pokemon you wish to retrieve.');
      }
  
      pokedexNumber = pokedexNumber.toString();
      var apiCall = 'http://pokeapi.co/api/v' + defaults.version +
        '/pokemon/' + pokedexNumber;
  
      makeTheCall(pokedexNumber, 'pokemon', apiCall, function(err, data) {
        return fn(err, data);
      });
    }
docs: /*
  GET the pokemon at the specified pokedex number.
  
  @param {Number} national pokedex number
  @param {Function} return function
  @return {Object}