[USER (data scientist)]: Awesome, thanks! Now, I also want to see which of these have at least 256 GB of SSD storage. Can you help me with that too?  Please generate a filtered DataFrame to identify laptops with at least 256GB SSD storage from the 'laptops_price.csv' dataset, and save this subset to a pickle file.
My template of code snippet is:

---BEGIN CODE TEMPLATE---

import pandas as pd
import pickle

laptops_price = pd.read_csv("laptops_price.csv")

# YOUR SOLUTION BEGIN:
<code1>
[GENERATE YOUR CODE]
</code1>
# YOUR SOLUTION END:

print(laptops_at_least_256gb_ssd)

# save data
pickle.dump(laptops_at_least_256gb_ssd,open("./pred_result/laptops_at_least_256gb_ssd.pkl","wb"))

---END CODE TEMPLATE---

[YOU (AI assistant)]: Sure thing! Let's filter those laptops further to find the ones with at least 256 GB of SSD storage: 
