scripts/py_matter_idl/matter_idl/generators/cpp/application/CallbackStubSource.jinja

#include <app-common/zap-generated/callback.h>

using namespace chip;

{%- for name in clusters | sort(attribute='name') | map(attribute='name') | unique %}
void __attribute__((weak)) emberAf{{name}}ClusterInitCallback(EndpointId endpoint)
{
    // To prevent warning
    (void) endpoint;
}
{%- endfor %}