how to unpickle model train by python

[iris-qq]

train in python:

import pickle
from sklearn.svm import LinearSVC

clf = LinearSVC()
with open("test.pkl","wb") as f:
    f.write(pickle.dumps(clf,2))

if i want to load this model , i need know the struct of this model.In fact, I know nothing about the internals of the model save file.
anybody help? pls