| `email` | string | yes | Public email address of the user. |
| `size` | integer | no | Single pixel dimension (since images are squares). Only used for avatar lookups at `Gravatar` or at the configured `Libravatar` server. |
| `size` | integer | no | Single pixel dimension (because images are squares). Only used for avatar lookups at `Gravatar` or at the configured `Libravatar` server. |
| `id` | integer/string | yes | The ID or [URL-encoded path of the project or group](README.md#namespaced-path-encoding) owned by the authenticated user |
| `user_id` | integer | yes | The user ID of the member |
| `unassign_issuables` | boolean | false | Flag indicating if the removed member should be unassigned from any issues or merge requests within given group or project |
| `unassign_issuables` | boolean | false | Flag indicating if the removed member should be unassigned from any issues or merge requests inside a given group or project |