How to access the Diffusion Coefficients calculated by Garfield to do calculations

Garfield++
1

I am running the example “~/garfiledpp/Examples/Gasfile/generate.C” to generate a gas file. I now want to retrieve the Diffusion coefficients from the gas file and use their values to calculate the electron cloud size as the electron drifts along the electric field. My question is: What function do I use to get those D values?
GetElectronDiffusion() does not seem to be a defined function in Magboltz, even though GetElectronTownsend() is and GetElectronVelocity() is.
Could someone please inform me how to access the calculated values of the other transport quantities?

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The methods are called GetElectronLongitudinalDiffusion and GetElectronTransverseDiffusion.

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