from __future__ import annotations

from treeparse import option

opt = option(
    flags=["--output", "-o"],
    arg_type=str,
    help="Write output here.",
    default=None,
    nargs=None,
    choices=None,
    required=False,
    inherit=True,   # visible to child commands/groups
    flag=False,     # True => store_true boolean (no value consumed)
    sort_key=0,
)

option(flags=["--verbose", "-v"], flag=True, help="Verbose mode.")
# callback receives verbose: bool