human
Solve the following python programming problem given the following code:
@ pytest.fixture (scope = 'module', params = list (gpu_cpu_32_16), ids = idfunc) 
def backend_tests(request) : 
    '
    Fixture that returns cpu and gpu backends for 16 and 32 bit
    ' 
    be = gen_backend (backend = request.param [0], datatype = be.param [1], batch_size = 128, device_id = request.config.getoption ('--device_id'), rng_seed = 0) 
    def cleanup() : 
        be = request.getfuncargvalue ('backend_tests') 
        del be 
request.addfinalizer (cleanup) 
    return be 

    
    

    Fix the buggy line: be = gen_backend (backend = request.param [0], datatype = be.param [1], batch_size = 128, device_id = request.config.getoption ('--device_id'), rng_seed = 0)
assistant
#Here is Python program to fix the buggy line: be = gen_backend (backend = request.

be = gen_backend (backend = request.param [0], datatype = request.param [1], batch_size = 128, device_id = request.config.getoption ('--device_id'), rng_seed = 0)