'Test whether the block is a special exam.'

@staticmethod
def is_special_exam(block_key, block_structure):

    return (block_structure.get_xblock_field(block_key, 'is_proctored_enabled') or block_structure.get_xblock_field(block_key, 'is_practice_exam') or block_structure.get_xblock_field(block_key, 'is_timed_exam'))
