| `order_by` | string | no | Return issues ordered by `created_at` or `updated_at` fields. Default is `created_at` |
| `order_by` | string | no | Return issues ordered by `created_at` or `updated_at` fields. Default is `created_at` |
| `sort` | string | no | Return issues sorted in `asc` or `desc` order. Default is `desc` |
| `sort` | string | no | Return issues sorted in `asc` or `desc` order. Default is `desc` |
| `search` | string | no | Search issues against their `title` and `description` |
| `search` | string | no | Search issues against their `title` and `description` |
| `in` | string | no | Modify the scope of the `search` attribute. `title`, `description`, or a string joined them with comma. Default is `title,description` |
| `in` | string | no | Modify the scope of the `search` attribute. `title`, `description`, or a string joining them with comma. Default is `title,description` |
| `created_after` | datetime | no | Return issues created on or after the given time |
| `created_after` | datetime | no | Return issues created on or after the given time |
| `created_before` | datetime | no | Return issues created on or before the given time |
| `created_before` | datetime | no | Return issues created on or before the given time |
| `updated_after` | datetime | no | Return issues updated on or after the given time |
| `updated_after` | datetime | no | Return issues updated on or after the given time |
| `source_branch` | string | no | Return merge requests with the given source branch |
| `source_branch` | string | no | Return merge requests with the given source branch |
| `target_branch` | string | no | Return merge requests with the given target branch |
| `target_branch` | string | no | Return merge requests with the given target branch |
| `search` | string | no | Search merge requests against their `title` and `description` |
| `search` | string | no | Search merge requests against their `title` and `description` |
| `in` | string | no | Modify the scope of the `search` attribute. `title`, `description`, or a string joined them with comma. Default is `title,description` |
| `in` | string | no | Modify the scope of the `search` attribute. `title`, `description`, or a string joining them with comma. Default is `title,description` |
| `wip` | string | no | Filter merge requests against their `wip` status. `yes` to return *only* WIP merge requests, `no` to return *non* WIP merge requests |
| `wip` | string | no | Filter merge requests against their `wip` status. `yes` to return *only* WIP merge requests, `no` to return *non* WIP merge requests |