code: function parseFormulaData (nulls, operation, result) {
    /**
     * @description
     * Object containing formula data
     *
     * @typedef {object} carto.dataview.FormulaData
     * @property {number} nulls - Number of null values in the column
     * @property {string} operation - Operation used
     * @property {number} result - Result of the operation
     * @api
     */
    return {
      nulls: nulls,
      operation: operation,
      result: result
    };
  }
docs: Transform the data obtained from an internal formula dataview into a
  public object.
  
  @param  {number} nulls
  @param  {string} operation
  @param  {number} result
  
  @return {carto.dataview.FormulaData} - The parsed and formatted data for the given parameters