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import argparse
from typing import List, Tuple, Type
from knot_resolver.client.command import Command, CommandArgs, CompWords, comp_get_words, register_command
@register_command
class HelpCommand(Command):
def __init__(self, namespace: argparse.Namespace) -> None:
super().__init__(namespace)
def run(self, args: CommandArgs) -> None:
args.parser.print_help()
@staticmethod
def completion(args: List[str], parser: argparse.ArgumentParser) -> CompWords:
return comp_get_words(args, parser)
@staticmethod
def register_args_subparser(
subparser: "argparse._SubParsersAction[argparse.ArgumentParser]",
) -> Tuple[argparse.ArgumentParser, "Type[Command]"]:
stop = subparser.add_parser("help", help="show this help message and exit")
return stop, HelpCommand
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