go run main.go

NAME:
   authors - A new cli application

USAGE:
   authors

OPTIONS:
   --help, -h      show help
   --login string  the username of the user
   --id string     the user id (defaults to 'me' for current user)
2025/08/08 23:09:13 one of these flags needs to be provided: login, id

go run main.go --id 987zyx

Getting user by id: 987zyx
{"id":"987zyx","login":"vwoolf@example.com","firstName":"Virginia","lastName":"Woolf"}

go run main.go --login example@example.com

Getting user by login: example@example.com
{"id":"abc123","login":"example@example.com","firstName":"Virginia","lastName":"Woolf"}

Documentation additions on flag groups