topic property

Topic? topic
final

The topicId parameter indicates that the API response should only contain resources associated with the specified topic. The value identifies a Freebase topic ID.

string

Important: Due to the deprecation of Freebase and the Freebase API, the topicId parameter started working differently as of February 27, 2017. At that time, YouTube started supporting a small set of curated topic IDs, and you can only use that smaller set of IDs as values for this parameter.

Implementation

final Topic? topic;