code: @javax.annotation.Nonnull
      public java.util.Optional<net.morimekta.providence.model.FilePos> optionalStartPos() {
          return java.util.Optional.ofNullable(mStartPos);
      }
docs: The start of the definition (position of &#39;service&#39;)
  
  @return Optional of the <code>start_pos</code> field value.