post https://api.cmp.optimizely.com/v3/tasks//assets
This API allows you to add an asset to a task. There currently two mechanisms to add an asset - either by uploading an asset first and then calling this API (for only images, videos, and raw files), or by adding an asset from the library. The 'type' parameter in the request body will determine the mechanism used to add the asset. See Upload assets to upload an asset.