
    Write a function to determine if any identical sensor readings exist among the maintenance data collected from multiple transit vehicles in the fleet, as duplicate readings could indicate a systematic issue or sensor malfunction requiring immediate attention. The function should analyze an array of sensor measurements and return true if any duplicate values are found, indicating potential maintenance concerns across multiple vehicles.
    

    
def test_duplicate(arraynums):
    """
    Write a function to determine if any identical sensor readings exist among the maintenance data collected from multiple transit vehicles in the fleet, as duplicate readings could indicate a systematic issue or sensor malfunction requiring immediate attention. The function should analyze an array of sensor measurements and return true if any duplicate values are found, indicating potential maintenance concerns across multiple vehicles.
    

    """
def test_duplicate(arraynums):
    """
    Write a function to determine if any identical sensor readings exist among the maintenance data collected from multiple transit vehicles in the fleet, as duplicate readings could indicate a systematic issue or sensor malfunction requiring immediate attention. The function should analyze an array of sensor measurements and return true if any duplicate values are found, indicating potential maintenance concerns across multiple vehicles.
    

    """
    nums_set = set(arraynums)
    return len(arraynums) != len(nums_set)