code: public static FieldValueFetcher fetcher(final String pathAssistantSid, 
                                              final String pathFieldTypeSid, 
                                              final String pathSid) {
          return new FieldValueFetcher(pathAssistantSid, pathFieldTypeSid, pathSid);
      }
docs: Create a FieldValueFetcher to execute fetch.
  
  @param pathAssistantSid The SID of the Assistant that is the parent of the
  FieldType associated with the resource to fetch
  @param pathFieldTypeSid The SID of the Field Type associated with  the Field
  Value to fetch
  @param pathSid The unique string that identifies the resource
  @return FieldValueFetcher capable of executing the fetch