Update a group

{
  "type": "object",
  "properties": {
    "group": {
      "type": "object",
      "required": [
        "name"
      ],
      "properties": {
        "automatic_membership_email_domains": {
          "type": "string",
          "description": "pipe|separated"
        },
        "bio_raw": {
          "type": "string",
          "description": "About Group"
        },
        "default_notification_level": {
          "type": "integer"
        },
        "flair_bg_color": {
          "type": "string"
        },
        "flair_icon": {
          "type": "string"
        },
        "flair_upload_id": {
          "type": "integer"
        },
        "full_name": {
          "type": "string"
        },
        "muted_category_ids": {
          "type": "array",
          "items": {
            "type": "integer"
          }
        },
        "name": {
          "type": "string"
        },
        "owner_usernames": {
          "type": "string",
          "description": "comma,separated"
        },
        "primary_group": {
          "type": "boolean"
        },
        "public_admission": {
          "type": "boolean"
        },
        "public_exit": {
          "type": "boolean"
        },
        "regular_category_ids": {
          "type": "array",
          "items": {
            "type": "integer"
          }
        },
        "tracking_category_ids": {
          "type": "array",
          "items": {
            "type": "integer"
          }
        },
        "usernames": {
          "type": "string",
          "description": "comma,separated"
        },
        "visibility_level": {
          "type": "integer"
        },
        "watching_category_ids": {
          "type": "array",
          "items": {
            "type": "integer"
          }
        },
        "watching_first_post_category_ids": {
          "type": "array",
          "items": {
            "type": "integer"
          }
        }
      },
      "additionalProperties": false
    },
    "id": {
      "type": "integer"
    }
  },
  "required": [
    "group",
    "id"
  ],
  "additionalProperties": false
}