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5 changes: 3 additions & 2 deletions ros2param/ros2param/command/param.py
Original file line number Diff line number Diff line change
Expand Up @@ -19,12 +19,13 @@
class ParamCommand(CommandExtension):
"""Various param related sub-commands."""

def add_arguments(self, parser, cli_name):
def add_arguments(self, parser, cli_name, *, argv=None):
self._subparser = parser

# add arguments and sub-commands of verbs
add_subparsers_on_demand(
parser, cli_name, '_verb', 'ros2param.verb', required=False)
parser, cli_name, '_verb', 'ros2param.verb', required=False,
argv=argv)

def main(self, *, parser, args):
if not hasattr(args, '_verb'):
Expand Down