code: public static MemberFetcher fetcher(final String pathServiceSid, 
                                          final String pathChannelSid, 
                                          final String pathSid) {
          return new MemberFetcher(pathServiceSid, pathChannelSid, pathSid);
      }
docs: Create a MemberFetcher to execute fetch.
  
  @param pathServiceSid The SID of the Service to fetch the resource from
  @param pathChannelSid The unique ID of the channel the member belongs to
  @param pathSid The unique string that identifies the resource
  @return MemberFetcher capable of executing the fetch