def METHOD_NAME(loaded_assm_name_list):
    """Set the environment variable with list of loaded assemblies.
    Args:
        loaded_assm_name_list (list[str]): list of assembly names
        val (type): desc
    """
    envvars.set_pyrevit_env_var(
        envvars.LOADEDASSMS_ENVVAR,
        coreutils.DEFAULT_SEPARATOR.join(loaded_assm_name_list)
        )