Question: (Keeping mutables safe) Suggest a simple scheme for creating a new class SafeMember that would allow us to export a reference to a Member. The

(Keeping mutables safe) Suggest a simple scheme for creating a new class SafeMember that would allow us to export a reference to a Member. The classes outside the system should be unaware of this additional class, and access the reference like a reference to a Member object. However, the reference would not allow the integrity of the data to be compromised.

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