Adds the cells specified by a given condition or criteria.
| Name | Type | Description |
| arg1 | ApiRange | Is the range of cells you want evaluated. |
| arg2 | any | Is the condition or criteria in the form of a number, expression, or text that defines which cells will be added. |
| arg3 | ApiRange | Are the actual cells to sum. If omitted, the cells in range are used. |