S.I/Lisp/

FUNCTION

=FUNCTION()
-> FUNCTION

=FUNCTION("INCREMENT")
-> INCREMENT

=APPLY(FUNCTION("INCREMENT"), 1)
-> 2
        

DEFINE(
    FUNCTION,
    LAMBDA(
        [name],
        VLOOKUP(
            DEFAULT(name, "FUNCTION"),
            FUNCTIONS(),
            2,
            0)))
        

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