Example

USER(15): (setq my-account

(make-account :balance 125.00))

#<Closure (:INTERNAL MAKE-ACCOUNT 0) @ #x208490b2>

USER(16): (send my-account :balance)

125.0

USER(17): (send my-account :deposit 10.0)

135.0

USER(18): (send my-account :balance)

135.0

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