| Name | Type | Description | Notes |
|---|---|---|---|
| field | String | [optional] | |
| intervalEnd | Number | The end interval of the histogram | [optional] |
| intervalStart | Number | The start interval of the histogram | [optional] |
| intervalWidth | Number | The width of the histogram | [optional] |
| intervals | [HistogramInterval] | The intervals of the histograms | [optional] |
| publishedAtEnd | Date | The end of a period in which searched stories were published | [optional] |
| publishedAtStart | Date | The start of a period in which searched stories were published | [optional] |