mediaId property
Media ID of the uploaded asset.
This is a unique identifier for the asset. This ID can be passed to other API calls, e.g. CreateCreative to associate the asset with a creative. The Media ID space updated on April 5, 2023. Update media IDs cached before April 5, 2023 by retrieving the new media ID from associated creative resources or re-uploading the asset.
Implementation
core.String? mediaId;