docs: function(inputSrc, runtimeOptions) {
          // NOTE: Filters options are expected to be defined at setup time.
          // ...but, if needed, runtime filter options can be mapped thought
          // custom request handler.
          var output = {};
          if (inputSrc !== undefined) {
              var input = Util.oClone(inputSrc);
              if (input.data === undefined) {
                  // Accept result without data/metadata separation when
                  // there is no metadata to pass thought.
                  // (Only if no data vector present)
                  output.data = input;
              } else {
                  output = input;
              };
              if (output.meta === undefined) output.meta = {};
          };
          return flt(output, runtimeOptions);
      }