module completions {

  # change group ownership
  export extern chgrp [
    group: string
    --changes(-c)             # report only when a change is made
    --verbose(-v)             # output a diagnostic for every file processed
    --recursive(-R)           # operate on files and directories recursively
    -H                        # if a command line argument is a symbolic link to a directory, traverse it
    -L                        # traverse every symbolic link encountered in a directory
    -P                        # do not traverse any symbolic links (default)
    --same-filesystem(-s)     # do not cross filesystem boundaries (requires recursive)
    ...file: string
    --help(-h)                # Print help
    --version(-V)             # Print version
  ]

}

use completions *