/usr/share/doc/swig4.0-examples/Examples/test-suite/errors/swig_typemap_missing_value.i

%module xxx

%typemap(in, numinputs=1, foo) int ""
%typemap(argout=123) char* ""

/* SWIG segfaulted trying to use the above in typemap in SWIG < 4.1.0. */
void func(int arg);

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