public String getContentHash() {
        return this.contentHash;
    }
<p>
MD5 hash of the inventory item type contents. The content hash is used to determine whether to update inventory
information. The PutInventory API doesn't update the inventory item type contents if the MD5 hash hasn't changed
since last update.
</p>

@return MD5 hash of the inventory item type contents. The content hash is used to determine whether to update
        inventory information. The PutInventory API doesn't update the inventory item type contents if the MD5
        hash hasn't changed since last update.
aws-java-sdk-ssm/src/main/java/com/amazonaws/services/simplesystemsmanagement/model/InventoryItem.java