如何从嵌套字典中的值创建类型为[number，number][ ]的列表？

def extract_numbers_from_nested_dict(data):
    result = []
    for value in data.values():
        if isinstance(value, dict):
            result.extend(extract_numbers_from_nested_dict(value))
        elif isinstance(value, (int, float)):
            result.append(value)
    
    final_result = []
    for i in range(0, len(result), 2):
        if i+1 < len(result):
            final_result.append([result[i], result[i+1]])
    
    return final_result

data = {
    'a': {
        'x': 1,
        'y': 2
    },
    'b': {
        'x': 3,
        'y': 4
    },
    'c': {
        'x': 5,
        'y': 6
    }
}

result = extract_numbers_from_nested_dict(data)
print(result)

[[1, 2], [3, 4], [5, 6]]