A generic data container.

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

| Fields ||
|---|---|
| ## `value` Union field. A value. `value` can be only one of the following: ||
| ### `boolean_value` | `bool` A boolean. |
| ### `double_value` | `double` A double. |
| ### `float_value` | `float` A float. |
| ### `int64_value` | `int64` An int64. |
| ### `string_value` | `string` A string. |