config.py

from dynaconf import Dynaconf

settings = Dynaconf(
    envvar_prefix="DYNACONF",
    settings_files=['settings.toml', '.secrets.toml'],

)

# `envvar_prefix` = export envvars with `export DYNACONF_FOO=bar`.
# `settings_files` = Load these files in the order.

llm_model_dict_list = list(llm_model_dict.keys())
embedding_model_dict_list = list(embedding_model_dict.keys())