def convert()

in composer_local_dev/cli.py [0:0]


    def convert(self, value, param, ctx):
        if isinstance(value, int):
            return value
        if value == "all":
            return value
        try:
            number = int(value)
            if number < 1:
                raise ValueError("Not a positive number.")
            return number
        except ValueError:
            self.fail(
                f"{value!r} is not a positive integer or 'all' keyword",
                param,
                ctx,
            )