docs: def project_process(index, start, end):
      """Compute the metrics for the project process section of the enriched
      github issues index.
  
      Returns a dictionary containing "bmi_metrics", "time_to_close_metrics",
      "time_to_close_review_metrics" and patchsets_metrics as the keys and
      the related Metrics as the values.
      time_to_close_title and time_to_close_review_title contain the file names
      to be used for time_to_close_metrics and time_to_close_review_metrics
      metrics data.
  
      :param index: index object
      :param start: start date to get the data from
      :param end: end date to get the data upto
      :return: dictionary with the value of the metrics
      """
  
      results = {
          "bmi_metrics": [BMI(index, start, end)],
          "time_to_close_metrics": [DaysToCloseAverage(index, start, end),
                                    DaysToCloseMedian(index, start, end)],
          "time_to_close_review_metrics": [],
          "patchsets_metrics": []
      }
  
      return results