
    Write a function to verify that each vehicle ID in the delivery fleet's tracking system is unique, ensuring no duplicate vehicles are registered in the route optimization system. The function should examine a tuple of vehicle identifiers and confirm that no ID appears more than once, which is critical for accurate route assignments and fleet management.
    

    
def check_distinct(test_tup):
    """
    Write a function to verify that each vehicle ID in the delivery fleet's tracking system is unique, ensuring no duplicate vehicles are registered in the route optimization system. The function should examine a tuple of vehicle identifiers and confirm that no ID appears more than once, which is critical for accurate route assignments and fleet management.
    

    """
def check_distinct(test_tup):
    """
    Write a function to verify that each vehicle ID in the delivery fleet's tracking system is unique, ensuring no duplicate vehicles are registered in the route optimization system. The function should examine a tuple of vehicle identifiers and confirm that no ID appears more than once, which is critical for accurate route assignments and fleet management.
    

    """
    res = True
    temp = set()
    for ele in test_tup:
        if ele in temp:
            res = False
            break
        temp.add(ele)
    return res