async fn put_comment_reaction(
        &self,
        input: PutCommentReactionInput,
    ) -> Result<(), RusotoError<PutCommentReactionError>> {
        let mut request = self.new_signed_request("POST", "/");
        request.add_header("x-amz-target", "CodeCommit_20150413.PutCommentReaction");
        let encoded = serde_json::to_string(&input).unwrap();
        request.set_payload(Some(encoded));

        let response = self
            .sign_and_dispatch(request, PutCommentReactionError::from_response)
            .await?;
        std::mem::drop(response);
        Ok(())
    }
<p>Adds or updates a reaction to a specified comment for the user whose identity is used to make the request. You can only add or update a reaction for yourself. You cannot add, modify, or delete a reaction for another user.</p>
rusoto/services/codecommit/src/generated.rs