gitlab-org--gitlab-foss/app/assets/javascripts/vue_merge_request_widget/queries/toggle_draft.mutation.graphql

mutation toggleDraftStatus($projectPath: ID!, $iid: String!, $draft: Boolean!) {
  mergeRequestSetDraft(input: { projectPath: $projectPath, iid: $iid, draft: $draft }) {
    mergeRequest {
      id
      mergeableDiscussionsState
      title
      draft
    }
    errors
  }
}