SharePoint online usage report API

Copper Contributor
Hi,
 
"Our fall plans also include providing new public APIs that will enable you to programmatically access the usage data and integrate it into custom applications, like a company reporting portal."
 
This is from the blog post "New usage reports for SharePoint Online, OneDrive for Business and Exchange Online"
 
I want to know whether these public APIs are available for use.
If yes, Please get me the links for those APIs and its usage documentary.
If not, How can I programmatically receive the csv file provided in your SharePoint Activity reports.
 
Thanks...
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