def dict_select_choose(input_dict, keys):
    """
    Trim a dictionary down to selected keys, if they are in the dictionary.
    
    Args:
        input_dict (dict): the dictionary to trim
        keys (List): list of keys desired in the final dict

    Returns:
        trimmed dictionary
    """
    return {k: input_dict[k] for k in keys if k in input_dict.keys()}