code: @Nonnull
    public FineUploader5Chunking setParamNameTotalParts (@Nonnull @Nonempty final String sParamNameTotalParts)
    {
      ValueEnforcer.notEmpty (sParamNameTotalParts, "ParamNameTotalParts");
      m_sChunkingParamNamesTotalParts = sParamNameTotalParts;
      return this;
    }
docs: Name of the parameter passed with a chunked request that specifies the
  total number of chunks associated with the File or Blob.
  
  @param sParamNameTotalParts
  New value. May neither be <code>null</code> nor empty.
  @return this for chaining