| archive/tar | Package tar implements access to tar archives. |
| compress/gzip | Package gzip implements reading and writing of gzip format compressed files, as specified in RFC 1952. |
| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| 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/v1/rego | Package rego exposes high level APIs for evaluating Rego policies. |
| github.com/open-policy-agent/opa/v1/test/cases | Package cases contains utilities for evaluation test cases. |
| github.com/open-policy-agent/opa/v1/types | Package types declares data types for Rego values and helper functions to operate on these types. |
| github.com/open-policy-agent/opa/v1/util | Package util provides generic utilities used throughout the policy engine. |
| github.com/spf13/cobra | Package cobra is a commander providing a simple interface to create powerful modern CLI interfaces. |
| io | Package io provides basic interfaces to I/O primitives. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| path | Package path implements utility routines for manipulating slash-separated paths. |
| path/filepath | Package filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |