usage: ulid [-h] [--version] {build,show} ...

    Create or inspect ULIDs

    A ULID is a universally unique lexicographically sortable identifier
    with the following structure

       01AN4Z07BY      79KA1307SR9X4MV3
      |----------|    |----------------|
       Timestamp          Randomness
         48bits             80bits

options:
  -h, --help     show this help message and exit
  --version, -V  show program's version number and exit

subcommands:
  {build,show}
    build        generate ULIDs from different sources
    show         show properties of a ULID