A member of custom interest audience. A member can be a keyword or url. It is immutable, that is, it can only be created or removed but not changed.

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

| Fields ||
|---|---|
| ## `member_type` | `https://developers.google.com/google-ads/api/reference/rpc/v26/CustomInterestMemberTypeEnum.CustomInterestMemberType` The type of custom interest member, KEYWORD or URL. |
| ## `parameter` | `string` Keyword text when member_type is KEYWORD or URL string when member_type is URL. |