Assign or clear the user groups allowed to edit this branch

A valid request URL is required to generate request examples

{
  "created_at": "<string>",
  "created_by_id": "<string>",
  "description": "<string>",
  "editor_group_ids": [
    "<string>"
  ],
  "has_children": true,
  "id": "<string>",
  "is_deleted": true,
  "is_iteration": true,
  "is_protected": true,
  "is_variant": true,
  "labels": [
    {
      "color": "#dbeafe",
      "symbol": "<string>",
      "text": "<string>"
    }
  ],
  "last_rebased_at": "<string>",
  "last_touched_at": "<string>",
  "live_edits_allowed": true,
  "merged_at": "<string>",
  "name": "<string>",
  "number": 123,
  "owner_id": "<string>",
  "parent_name": "<string>",
  "ready_for_review": true,
  "require_review": true,
  "required_reviewer_ids": [
    "<string>"
  ],
  "updated_at": "<string>",
  "updated_by_id": "<string>",
  "upstream_branch_ids": [
    "<string>"
  ],
  "auto_merge_requested_at": "<string>",
  "auto_merge_requested_by_id": "<string>",
  "baseline_id": "<string>",
  "branch_extraction_enabled": true,
  "change_request_diff_summary": {
    "added": 123,
    "pending": 123,
    "removed": 123,
    "updated": 123
  },
  "change_request_title": "<string>",
  "comment_count": 123,
  "designated_reviewer_ids": [
    "<string>"
  ],
  "parent": "<string>",
  "restore_eligible": true,
  "reviews": [
    {
      "branch_id": "<string>",
      "comment_id": "<string>",
      "created_at": "<string>",
      "dismissed_at": "<string>",
      "id": "<string>",
      "status": "Approved",
      "updated_at": "<string>",
      "user_id": "<string>"
    }
  ]
}