def __init__(self, name: str, cmd: str, **config: Any) -> None:
        """
        Initialize :class:`DropDown` window wrapper.

        Define a command to spawn a process for the first time the class:`DropDown` is
        shown.

        Parameters
        ==========
        name:
            The name of the dropdown.
        cmd:
            Command to spawn a window to be captured by the dropdown.
        """
        configurable.Configurable.__init__(self, **config)
        self.name = name
        self.command = cmd
        self.add_defaults(self.defaults)

        Initialize :class:`DropDown` window wrapper.

        Define a command to spawn a process for the first time the class:`DropDown` is
        shown.

        Parameters
        ==========
        name:
            The name of the dropdown.
        cmd:
            Command to spawn a window to be captured by the dropdown.
        
libqtile/config.py