NOTE: For Version 3 of the AWS SDK for PHP, please see the V3 User Guide and V3 API Reference.

# Class HistoryItemType

Contains enumerable HistoryItemType values

  Aws\Common\Enum
  Aws\CloudWatch\Enum\HistoryItemType

Namespace: Aws\CloudWatch\Enum
Located at Aws/CloudWatch/Enum/HistoryItemType.php

## Methods summary

## Methods detail

### Methods inherited from Aws\Common\Enum

`keys()`, `values()`

### Magic methods summary

## Constants summary

`string` | `CONFIGURATION_UPDATE` | `'ConfigurationUpdate'` | #
`string` | `STATE_UPDATE` | `'StateUpdate'` | #
`string` | `ACTION` | `'Action'` | #

## Properties summary

### Properties inherited from Aws\Common\Enum

`$cache`