Using Python SDK for ContextCapture how do you set the no data value for the Ortho and DSM?

Just trying to set the no data value for the Ortho and DSM in Python. Couldn't find any reference to it in the documentation. I'm assuming you just set it similar to the sample distance in the driveroptions of the production.

driverOptions.put_double("SamplingDistance", samplingDistance)

Thanks in advance for any help!!