Enum describing possible date selection types.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/enums/date_selection_type.proto)

| Enums ||
|---|---|
| ## `DEFAULT_SELECTION` | Dates selected by default. |
| ## `UNKNOWN` | Used for return value only. Represents value unknown in this version. |
| ## `UNSPECIFIED` | Not specified. |
| ## `USER_SELECTED` | Dates selected by the user. |