| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| google.golang.org/grpc/encoding | Package encoding defines the interface for the compressor and codec, and functions to register and retrieve compressors and codecs. |
| google.golang.org/grpc/mem | Package mem provides utilities that facilitate memory reuse in byte slices that are used as buffers. |
| google.golang.org/protobuf/proto | Package proto provides functions operating on protocol buffer messages. |
| google.golang.org/protobuf/protoadapt | Package protoadapt bridges the original and new proto APIs. |