Amazon Macie Iam User Structure

{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/amazon-macie/refs/heads/main/json-structure/amazon-macie-iam-user-structure.json",
  "name": "IamUser",
  "description": "Provides information about an Identity and Access Management (IAM) user who performed an action on an affected resource.",
  "type": "object",
  "properties": {
    "accountId": {
      "allOf": [
        {
          "$ref": "#/components/schemas/__string"
        },
        {
          "description": "The unique identifier for the Amazon Web Services account that's associated with the IAM user who performed the action."
        }
      ]
    },
    "arn": {
      "allOf": [
        {
          "$ref": "#/components/schemas/__string"
        },
        {
          "description": "The Amazon Resource Name (ARN) of the principal that performed the action. The last section of the ARN contains the name of the user who performed the action."
        }
      ]
    },
    "principalId": {
      "allOf": [
        {
          "$ref": "#/components/schemas/__string"
        },
        {
          "description": "The unique identifier for the IAM user who performed the action."
        }
      ]
    },
    "userName": {
      "allOf": [
        {
          "$ref": "#/components/schemas/__string"
        },
        {
          "description": "The username of the IAM user who performed the action."
        }
      ]
    }
  }
}