code: public SearchResult search(String query) throws SmartsheetException {
          return search(query, null, null, null, null);
      }
docs: Performs a search across all Sheets to which user has access.
  
  It mirrors to the following Smartsheet REST API method: GET /search
  
  Exceptions:
  IllegalArgumentException : if query is null/empty string
  InvalidRequestException : if there is any problem with the REST API request
  AuthorizationException : if there is any problem with the REST API authorization(access token)
  ServiceUnavailableException : if the REST API service is not available (possibly due to rate limiting)
  SmartsheetRestException : if there is any other REST API related error occurred during the operation
  SmartsheetException : if there is any other error occurred during the operation
  
  @param query the query text
  @return the search result (note that if there is no such resource, this method will throw
  ResourceNotFoundException rather than returning null).
  @throws UnsupportedEncodingException the unsupported encoding exception
  @throws SmartsheetException the smartsheet exception