| bytes | Package bytes implements functions for the manipulation of byte slices. |
| encoding/json | Package json implements encoding and decoding of JSON as defined in RFC 7159. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/open-policy-agent/opa/logging | Deprecated: This package is intended for older projects transitioning from OPA v0.x and will remain for the lifetime of OPA v1.x, but its use is not recommended. |
| github.com/sirupsen/logrus | Package logrus is a structured logger for Go, completely API compatible with the standard library logger. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |