| `issue_type` | string | no | The type of issue. One of `issue`, `incident`, or `test_case`. Default is `issue`. |
| `labels` | string | no | Comma-separated label names for an issue |
| `merge_request_to_resolve_discussions_of` | integer | no | The IID of a merge request in which to resolve all issues. This fills out the issue with a default description and mark all discussions as resolved. When passing a description or title, these values take precedence over the default values.|
| `milestone_id` | integer | no | The global ID of a milestone to assign issue |
| `milestone_id` | integer | no | The global ID of a milestone to assign issue. To find the `milestone_id` associated with a milestone, view an issue with the milestone assigned and [use the API](#single-project-issue) to retrieve the issue's details. |
| `title` | string | yes | The title of an issue |
| `weight`**(PREMIUM)** | integer | no | The weight of the issue. Valid values are greater than or equal to 0. |