AR='ar'
CC='gcc'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='0'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='g++'
GCCGO='gccgo'
GO111MODULE=''
GOAMD64='v3'
GOARCH='amd64'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/home/user/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/home/user/.config/go/env'
GOEXE=''
GOEXPERIMENT='synctest,jsonv2'
GOFIPS140='off'
GOFLAGS='-trimpath "-ldflags=-s -w" -vet=all'
GOGCCFLAGS='-fPIC -m64 -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build1796236948=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/home/user/tmp/testrepo1203/go.mod'
GOMODCACHE='/home/user/.data/go/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/home/user/.data/go'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/home/user/sdk/go1.25rc1'
GOSUMDB='sum.golang.org'
GOTELEMETRY='on'
GOTELEMETRYDIR='/home/user/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='path'
GOTOOLDIR='/home/user/sdk/go1.25rc1/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.25rc1'
GOWORK=''
PKG_CONFIG='pkg-config'

$ go1.25rc1 doc -help
Usage of [go] doc:
	go doc
	go doc <pkg>
	go doc <sym>[.<methodOrField>]
	go doc [<pkg>.]<sym>[.<methodOrField>]
	go doc [<pkg>.][<sym>.]<methodOrField>
	go doc <pkg> <sym>[.<methodOrField>]
For more information run
	go help doc

Flags:
  -C dir
    	change to dir before running command
  -all
    	show all documentation for package
  -c	symbol matching honors case (paths not affected)
  -cmd
    	show symbols with package docs even if package is a command
  -http
    	serve HTML docs over HTTP
  -short
    	one-line representation for each symbol
  -src
    	show source code for symbol
  -u	show unexported symbols as well as exported

$ go1.25rc1 help doc
usage: go doc [doc flags] [package|[package.]symbol[.methodOrField]]

Doc prints the documentation comments associated with the item identified by its
arguments (a package, const, func, type, var, method, or struct field)
followed by a one-line summary of each of the first-level items "under"
that item (package-level declarations for a package, methods for a type,
etc.).

... [snip] ...

Flags:
	-all
		Show all the documentation for the package.
	-c
		Respect case when matching symbols.
	-cmd
		Treat a command (package main) like a regular package.
		Otherwise package main's exported symbols are hidden
		when showing the package's top-level documentation.
	-short
		One-line representation for each symbol.
	-src
		Show the full source code for the symbol. This will
		display the full Go source of its declaration and
		definition, such as a function definition (including
		the body), type declaration or enclosing const
		block. The output may therefore include unexported
		details.
	-u
		Show documentation for unexported as well as exported
		symbols, methods, and fields.