toJson method
Implementation
@override
Map<String, dynamic> toJson() {
return {
'id': id,
'variable_id': variableID,
'type': type,
'group': group,
'table': table,
'select': select,
'limit': limit,
'offset': offset,
'order_by': orderBy,
'is_count': isCount,
'filters': filters.map((e) => e.toJson()).toList(),
};
}