How to add an argument that takes everything from the command line?

[harryle95]

I tried to achieve this by setting multiple=True, like this script for instance:

#myprogram.py 

from cleo.application import Application
from cleo.commands.command import Command
from cleo.helpers import argument


class RunCommand(Command):
    name = "run"
    description = "Runs a command in the appropriate environment."

    arguments = [
        argument("args", "The command and arguments/options to run.", multiple=True)
    ]

    def handle(self):
        args = self.argument("args")
        print(args)


if __name__ == "__main__":
    application = Application()
    application.add(RunCommand())
    application.run()

When running python myprogram.py run target --var1 1 --var2 10, cleo would throw an error about --var1 option does not exist. Upon futher looking, poetry seems to achieve this by subclassing Application, and redefining io. I am just wondering if there is a painless way of doing this natively in cleo. I am happy to contribute if this feature is not yet available.

Edit:
I know that this can be achieved by using raw sys.argv, but I want to use cleo features like help and list.