Type Hints · interview question
Which option is the safer default when shipping code around protocols?
Multiple choiceHardchapter-10-curatedpremiumtype-hintsprotocols
from typing import Protocol
class PaymentGateway(Protocol):
def charge(self, amount: int) -> str: ...Answer and explanation
Correct answer
B. Choose the simpler shape that keeps the rule obvious, validated, and easy to observe in logs or tests.
Why
The safest default is usually the one that lowers ambiguity and makes errors easier to diagnose.
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