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# Import necessary JMRI classes
from jmri import SignalHead
from jmri import Reporter

# Get the SignalHead object for the signal mast
signal_mast = SignalHead.getSignalHead("Signal Mast, Table 12, Track 5, West Bound")

# Check if the signal mast exists
if signal_mast is not None:
? ? # To set the aspect, you'll need to use the setState method with one of the predefined aspects.
? ? # Here we set an example aspect. Adjust according to the available aspects.
? ??
? ? # For example, setting the signal to red (stop signal):
? ? signal_mast.setState(SignalHead.RED)
? ??
? ? # If you want to set to a different aspect, such as yellow or green, use:
? ? # signal_mast.setState(SignalHead.YELLOW) ?# for yellow
? ? # signal_mast.setState(SignalHead.GREEN) ? # for green
? ??
? ? # Optionally, you can get the current state to confirm if it was set correctly
? ? current_state = signal_mast.getState()
? ? print("Signal Mast aspect set to: ", current_state)
else:
? ? print("Signal Mast 'Signal Mast, Table 12, Track 5, West Bound' not found.")