| flag | Package flag implements command-line flag parsing. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/golang/glog | Package glog implements logging analogous to the Google-internal C++ INFO/ERROR/V setup. |
| github.com/golang/protobuf/proto | Package proto provides functionality for handling protocol buffer messages. |
| github.com/golang/protobuf/protoc-gen-go/plugin | |
| github.com/grpc-ecosystem/grpc-gateway/codegenerator | Package codegenerator contains reusable functions used by the code generators. |
| github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor | |
| github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/gengateway | |
| os | Package os provides a platform-independent interface to operating system functionality. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |