Go パッケージのクラス図を PlantUML で描く

$ go get github.com/jfeliu007/goplantuml/cmd/goplantuml@latest

$ goplantuml -h
Usage of goplantuml:
  -aggregate-private-members
    	Show aggregations for private members. Ignored if -show-aggregations is not used.
  -hide-connections
    	hides all connections in the diagram
  -hide-fields
    	hides fields
  -hide-methods
    	hides methods
  -ignore string
    	comma separated list of folders to ignore
  -notes string
    	Comma separated list of notes to be added to the diagram
  -output string
    	output file path. If omitted, then this will default to standard output
  -recursive
    	walk all directories recursively
  -show-aggregations
    	renders public aggregations even when -hide-connections is used (do not render by default)
  -show-aliases
    	Shows aliases even when -hide-connections is used
  -show-compositions
    	Shows compositions even when -hide-connections is used
  -show-connection-labels
    	Shows labels in the connections to identify the connections types (e.g. extends, implements, aggregates, alias of
  -show-implementations
    	Shows implementations even when -hide-connections is used
  -show-options-as-note
    	Show a note in the diagram with the none evident options ran with this CLI
  -title string
    	Title of the generated diagram

$ goplantuml ~/go/src/github.com/spiegel-im-spiegel/pa-api > pa-api.puml

java -jar /path/to/plantuml.jar -charset UTF-8 pa-api.puml