struct SomeStructName {
    static struct InnerStruct {
        version (linux) {
            static if (condition) {
                void longFunctionName(AAAAAAAA)(AAAAAAAA a) @property 
                        if (someThingsAreTrue!AAAAAAAA && long_condition
                            && is(some < elaborate && expression)) {
                }
            }
        }
    }
}