Parse an issue_tree command line into a typed Command.
issue_tree
Command
arguments after the node/script entries (subcommand first)
the parsed, discriminated command
Error on a missing or unknown subcommand, or a bad flag
parseCommand(['render', '--format', 'svg']).subcommand // => 'render' Copy
parseCommand(['render', '--format', 'svg']).subcommand // => 'render'
Parse an
issue_treecommand line into a typedCommand.