Bruggeman transport efficiency submodel

[ch662]

Hello, I am trying to make a custom submodel from the Bruggeman submodel, but I can't seem to get the code to run.
I noticed that the current github code for the Bruggeman submodel is entirely different than the code I get when I install pybamm 22.9 so I'm not sure what to make of that.
I get the following error when I try to use the submodel , any ideas on how to get this to run or is there something I'm not seeing?

I am running
pybamm 22.9
Python 3.9.13

my code:

import pybamm
import numpy as np
import matplotlib.pyplot as plt

model = pybamm.lithium_ion.DFN(build = False)

model.submodels["electrolyte transport efficiency"] = pybamm.transport_efficiency.Bruggeman(
model.param, "electrolyte"
)

model.build_model()

[valentinsulzer]

You need to capitalize "Electrolyte".
Also, self._get_standard_transport_efficiency_variables now takes a dictionary, keys should be domain strings (e.g. "negative electrode") and values should be the pybamm expression for that domain. This change is to allow more flexible model and domain definitions (half-cells, symmetric cells, dead lithium layer, etc), which is all work in progress