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(define (fun1 model lang arg1 arg2) ... ) (define (fun2 model lang arg3 arg4 arg5) ... ) (define (fun3 model lang arg6) ... ) (define (fun4 model lang arg7 arg8 arg9) ... ) (define (fun5 model lang arg10 arg11) ... ) (define (fun6 model lang arg12 arg13) ... )