My Tpot give me nested model as follows, could you tell me how to use the model? or give me an example

The nested model:
Best pipeline: RandomForestClassifier(LogisticRegression(PCA(SelectFwe(input_matrix, alpha=0.045), iterated_power=3, svd_solver=randomized), C=1.0, dual=False, penalty=l1), bootstrap=False, criterion=gini, max_features=0.5, min_samples_leaf=3, min_samples_split=12, n_estimators=100)

As we can see, the model use SelectFwe, PCA, LogisticRegression and RandomForestClassifier, but i don`t find the example about nested model. Could you tell me how can i find an example about this, or how to run the model? Thank you!