How to get contentId of wikipage created ?

I would like to assign permisisons to content(wiki page). After creating wikipage how to retrieve the contentId so that it can be passed in

$wikiPage = new BitPage();
$wikiPage ->store($wikiParams);

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$contPerm = new LibertyContent();
$contPerm ->storePermission( $groupId,"p_wiki_edit_page",FALSE,pContentId);

in bitweaver, $gContent has the content id in $gContent->mContentId. we have some useful debugging and developing tools that can help you with sort of stuff:

or

see:
bitweaverFAQ

Thanks xing....I used the below code..it worked.

$pContentId = $wikiPage->mContentId;