def create_rating(candidate_id, member_id, comment, score)
      body = {
        member_id: member_id,
        comment: comment,
        score: score
      }

      post_request("candidates/#{candidate_id}/ratings") do |request|
        request.body = body.to_json
      end
    end
def create_rating(candidate_id, member_id, comment, score)
      body = {
        member_id: member_id,
        comment: comment,
        score: score
      }

      post_request("candidates/#{candidate_id}/ratings") do |request|
        request.body = body.to_json
      end
    end
creates a rating for a candidate
 @param candidate_id [String] the candidate's id
 @param member_id [String] id of the member adding the rating
 @param comment [String] a comment about the scoring of the candidate
 @param score [String] one of 'negative', 'positive', or 'definitely'