| `issue_type` | string | no | Filter to a given type of issue. One of `issue`, `incident`, or `test_case`. _(Introduced in [GitLab 13.12](https://gitlab.com/gitlab-org/gitlab/-/issues/260375))_ |
| `iteration_id`**(PREMIUM)** | integer | no | Return issues assigned to the given iteration ID. `None` returns issues that do not belong to an iteration. `Any` returns issues that belong to an iteration. Mutually exclusive with `iteration_title`. _([Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/118742) in GitLab 13.6)_ |
| `iteration_title`**(PREMIUM)** | string | no | Return issues assigned to the iteration with the given title. Similar to `iteration_id` and mutually exclusive with `iteration_id`. _([Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/118742) in GitLab 13.6)_ |
| `milestone` | string | no | The milestone title. `None` lists all issues with no milestone. `Any` lists all issues that have an assigned milestone. |
| `labels` | string | no | Comma-separated list of label names, issues must have all labels to be returned. `None` lists all issues with no labels. `Any` lists all issues with at least one label. `No+Label` (Deprecated) lists all issues with no labels. Predefined names are case-insensitive. |
| `milestone` | string | no | The milestone title. `None` lists all issues with no milestone. `Any` lists all issues that have an assigned milestone. |
| `my_reaction_emoji` | string | no | Return issues reacted by the authenticated user by the given `emoji`. `None` returns issues not given a reaction. `Any` returns issues given at least one reaction. _([Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/14016) in GitLab 10.0)_ |
