**Note:** YouTube deprecated the `relatedToVideoId` parameter in August 2023.
This function will return an error as the API endpoint no longer works.
Consider using yt_search with relevant keywords instead.
Maximum number of items that should be returned.
Integer. Optional. Default is 50. Values over 50 trigger multiple requests and
may increase API quota usage.
safe_search
Character. Optional. Takes one of three values:
'moderate', 'none' (default) or 'strict'
if (FALSE) {
# Set API token via yt_oauth() first# NOTE: This function no longer works due to YouTube API deprecationget_related_videos(video_id = "yJXTXN4xrI8")
}