code: function getArrayIndexAt(arr, dimensions, data) {
      var currentDimension = dimensions[0];
      data.validate(currentDimension, 'number');
      currentDimension = Math.max(0, Math.floor(currentDimension - 1));
  
      if (arr.length <= currentDimension) throw new Error('Invalid array bounds');
      var item = arr[currentDimension];
      if (dimensions.length > 1) {
          if (!Array.isArray(item)) throw new Error('Invalid array dimensions');
          return getArrayIndexAt(arr[currentDimension], dimensions.slice(1), data);
      } else return item;
  }
docs: Gets the array item at a certain index, including multiple dimensions
  
  @param {Array} arr The array to search
  @param {Array<ExpressionStatement>} dimensions An array of indexes
  @param {ExecutionContext} data The execution data context
  @returns {Number|String}
  @private