| google.golang.org/protobuf/encoding/prototext | Package prototext marshals and unmarshals protocol buffer messages as the textproto format. |
| google.golang.org/protobuf/reflect/protodesc | Package protodesc provides functionality for converting FileDescriptorProto messages to/from protoreflect.FileDescriptor values. |
| google.golang.org/protobuf/reflect/protoreflect | Package protoreflect provides interfaces to dynamically manipulate messages. |
| google.golang.org/protobuf/runtime/protoiface | Package protoiface contains types referenced or implemented by messages. |
| google.golang.org/protobuf/runtime/protoimpl | Package protoimpl contains the default implementation for messages generated by protoc-gen-go. |
| google.golang.org/protobuf/types/descriptorpb | |
| reflect | Package reflect implements run-time reflection, allowing a program to manipulate objects with arbitrary types. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |