toJson method

Implementation

core.Map<core.String, core.dynamic> toJson() => {
      if (filter != null) 'filter': filter!,
      if (summaryFieldEnd != null) 'summaryFieldEnd': summaryFieldEnd!,
      if (summaryFieldStart != null) 'summaryFieldStart': summaryFieldStart!,
      if (summaryFields != null) 'summaryFields': summaryFields!,
    };