#
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from pymeasure.instruments import Instrument
from pymeasure.instruments.validators import strict_discrete_set


class Nxds(Instrument):
    """ Represents the Edwards nXDS (10i) Vacuum Pump
    and provides a low-level interaction with the instrument.
    This could potentially work with Edwards pump that has a RS232 interface.
    This instrument is constructed to only start and stop pump.
    """

    enable = Instrument.setting("!C802 %d",
                                """ Set the pump enabled state with default settings.""",
                                validator=strict_discrete_set,
                                values=(0, 1),)

    def __init__(self, adapter, name="Edwards NXDS Vacuum Pump", **kwargs):
        super().__init__(
            adapter,
            name,
            includeSCPI=False,
            **kwargs
        )