toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (dataSchema != null) 'dataSchema': dataSchema!,
if (datasetId != null) 'datasetId': datasetId!,
if (gcsStagingDir != null) 'gcsStagingDir': gcsStagingDir!,
if (projectId != null) 'projectId': projectId!,
if (tableId != null) 'tableId': tableId!,
};