toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (newTransaction != null) 'newTransaction': newTransaction!,
if (readTime != null) 'readTime': readTime!,
if (structuredAggregationQuery != null)
'structuredAggregationQuery': structuredAggregationQuery!,
if (transaction != null) 'transaction': transaction!,
};