Import the contents of a CSV file into the draft version of an existing HubDB table.
Importing a CSV will always update the draft version of the table. You will need to publish the draft via API or via the publish tools in HubSpot before the import would affect the live, public version of the table.
This endpoint takes a multipart POST request. The first part will be a set of JSON formatted options for the import. The second part will be the CSV file you want to import.