is one piece episode 413 filler?

Luffy is challenged to battle Boa Marigold and Boa Sandersonia in the Amazon Lily arena with the spectators calling for Luffy to be executed. The sisters in their snake forms are ready to fight Luffy.

Boa Marigold in the Salamander form and Boa Sandersonia in the Forked Snake Form. The people believe the sisters to have been cursed while defeating the Gorgon and has taken its powers.

Luffy, however, realized that they have the Devil Fruit powers. Luffy asked for a time-out and used that to remove the statues of Sweet Pea, Marguerite, and Aphelandra from the battle arena.