alef 0.20.1

Opinionated polyglot binding generator for Rust libraries
Documentation 
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	var cErr *C.char
	rc := C.{{ c_function }}(&cErr)

	if rc != 0 {
		msg := "failed to clear {{ trait_name }} plugins"
		if cErr != nil {
			msg = C.GoString(cErr)
			C.free(unsafe.Pointer(cErr))
		}
		return fmt.Errorf("%s", msg)
	}

	return nil