optionalStringExtension property
Implementation
static final optionalStringExtension = $pb.Extension<$core.String>(const $core.bool.fromEnvironment('protobuf.omit_message_names') ? '' : 'protobuf_unittest.TestAllExtensions', const $core.bool.fromEnvironment('protobuf.omit_field_names') ? '' : 'optionalStringExtension', 14, $pb.PbFieldType.OS);