c_g_closure_add_marshal_guards

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
__gshared extern (C)
void function(GClosure* closure, void* preMarshalData, GClosureNotify preMarshalNotify, void* postMarshalData, GClosureNotify postMarshalNotify) c_g_closure_add_marshal_guards;

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