<filename>test/salt_master_files/tests/cust_fun_4.py
def run(result):
    """Function to test empty list return"""
    ret = []

    return ret

<filename>test/salt_master_files/tests/cust_fun_4.py
def run(result):
    """Function to test empty list return"""
    ret = []

    return ret

Function to test empty list return