mergeFromJson method
      
void
mergeFromJson(
    
- String data, [
- ExtensionRegistry extensionRegistry = ExtensionRegistry.EMPTY
inherited
    Merges field values from data, a JSON object, encoded as described by
GeneratedMessage.writeToJson.
For the proto3 JSON format use: mergeFromProto3Json.
Implementation
void mergeFromJson(
  String data, [
  ExtensionRegistry extensionRegistry = ExtensionRegistry.EMPTY,
]) {
  json_lib.mergeFromJsonString(_fieldSet, data, extensionRegistry);
}