code: public JSONObject saveSynonym(String objectID, JSONObject content, boolean forwardToReplicas) throws AlgoliaException {
      return this.saveSynonym(objectID, content, forwardToReplicas, RequestOptions.empty);
    }
docs: Update one synonym
  
  @param objectID          The objectId of the synonym to save
  @param content           The new content of this synonym
  @param forwardToReplicas Forward the operation to the replica indices