Get Content Children

Deprecated, use [Confluence's v2 API](https://developer.atlassian.com/cloud/confluence/rest/v2/intro/).Returns a map of the direct children of a piece of content. A piece of contenthas different types of child content, depending on its type. These arethe default parent-child content type relationships:- `page`: child content is `page`, `comment`, `attachment`- `blogpost`: child content is `comment`, `attachment`- `attachment`: child content is `comment`- `c...