pkg net, method (*DNSConfigError) Unwrap() error
pkg net, method (*OpError) Unwrap() error
pkg net, type DNSError struct, IsNotFound bool
pkg net, type ListenConfig struct, KeepAlive time.Duration
pkg net/url, method (*Error) Unwrap() error
pkg os/exec, method (*Cmd) String() string
pkg os/exec, method (*Error) Unwrap() error
pkg os, func UserConfigDir() (string, error)
pkg os, method (*LinkError) Unwrap() error

- Add `rest_client_rate_limiter_duration_seconds` metric to component-base to track client side rate limiter latency in seconds. Broken down by verb and URL. ([#88134](https://github.com/kubernetes/kubernetes/pull/88134), [@jennybuckley](https://github.com/jennybuckley)) [SIG API Machinery, Cluster Lifecycle and Instrumentation]

pkg net/http, type Request struct, PostForm url.Values
pkg net/http, type Server struct, TLSNextProto map[string]func(*Server, *tls.Conn, Handler)
pkg net/http, type Transport struct, ResponseHeaderTimeout time.Duration
pkg net/http/cookiejar, func New(*Options) (*Jar, error)
pkg net/http/cookiejar, method (*Jar) Cookies(*url.URL) []*http.Cookie
pkg net/http/cookiejar, method (*Jar) SetCookies(*url.URL, []*http.Cookie)