the following XML:
<parameter id="ucldStdev.c:[id]" lower="0.0" name="stateNode">
0.1
</parameter>
Arguments
inference_model
a Bayesian phylogenetic inference model.
An inference model is the complete model setup in which a site model,
clock model, tree prior and more are specified.
Use create_inference_model to create an inference model.
Use check_inference_model to check if an inference model is valid.
Use rename_inference_model_filenames to rename the files in an
inference model.