code: public IClientRequestComposable getComposer(ClientRequestComposers composerName) {
          IClientRequestComposable composer = composersMap.get(composerName);
          if(composer == null) {
              initDefaultComposer(composerName);
          }
          return composersMap.get(composerName);
      }
docs: get IClientRequestComposable based on ClientRequestComposers composer name
  @param composerName
  @return IClientRequestComposable composer