{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/microsoft.graph.commentAction",
  "title": "commentAction",
  "required": [
    "@odata.type"
  ],
  "type": "object",
  "properties": {
    "isReply": {
      "type": "boolean",
      "description": "If true, this activity was a reply to an existing comment thread.",
      "nullable": true
    },
    "parentAuthor": {
      "anyOf": [
        {
          "$ref": "#/components/schemas/microsoft.graph.identitySet"
        },
        {
          "type": "object",
          "nullable": true
        }
      ],
      "description": "The identity of the user who started the comment thread."
    },
    "participants": {
      "type": "array",
      "items": {
        "$ref": "#/components/schemas/microsoft.graph.identitySet"
      },
      "description": "The identities of the users participating in this comment thread."
    },
    "@odata.type": {
      "type": "string"
    }
  }
}