Function pulls_slash_request_reviewers 

pub async fn pulls_slash_request_reviewers(
    configuration: &Configuration,
    owner: &str,
    repo: &str,
    pull_number: i32,
    pulls_request_reviewers_request: Option<PullsRequestReviewersRequest>,
) -> Result<PullRequestSimple, Error<PullsSlashRequestReviewersError>>

This endpoint triggers notifications. Creating content too quickly using this endpoint may result in secondary rate limiting. See "Secondary rate limits" and "Dealing with secondary rate limits" for details.