| crypto/sha1 | Package sha1 implements the SHA-1 hash algorithm as defined in RFC 3174. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| google.golang.org/protobuf/encoding/protojson | Package protojson marshals and unmarshals protocol buffer messages as JSON format. |
| google.golang.org/protobuf/encoding/prototext | Package prototext marshals and unmarshals protocol buffer messages as the textproto format. |
| google.golang.org/protobuf/internal/testprotos/fuzz | |
| google.golang.org/protobuf/internal/testprotos/test | |
| google.golang.org/protobuf/proto | Package proto provides functions operating on protocol buffer messages. |
| io/ioutil | Package ioutil implements some I/O utility functions. |
| log | Package log implements a simple logging package. |