toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() {
final columnIndex = this.columnIndex;
final columnName = this.columnName;
final columnType = this.columnType;
final dataValidationRule = this.dataValidationRule;
return {
'columnIndex': ?columnIndex,
'columnName': ?columnName,
'columnType': ?columnType,
'dataValidationRule': ?dataValidationRule,
};
}