Unable to Create Wiki via REST API Call

I am attempting to create a wiki page using a REST API call through Postman, but I am encountering issues with the API endpoint not functioning (404 Error) base on :
https://www.xwiki.org/xwiki/bin/view/Documentation/UserGuide/Features/XWikiRESTfulAPI

POST — /xwiki/rest/WikiManager
What is the correct :
1- Rest api call
2- parameters
3- body request
required for successful execution ?
Should the body of the request be in XML format? If so, could you provide an example of what it should look like?
I am using :

<Wiki>
  <name>test</name>
  <prettyName>test</prettyName>
  <description>This is a test wiki</description>
  <owner>XWiki.admin</owner>
  <template>org.xwiki.platform:xwiki-platform-distribution-flavor-wiki:::15.1</template>
</Wiki>