Function Sz_whySearch 

pub unsafe extern "C" fn Sz_whySearch(
    jsonData: *const c_char,
    entityID: i64,
    searchProfile: *const c_char,
    responseBuf: *mut *mut c_char,
    bufSize: *mut usize,
    resizeFunc: Option<unsafe extern "C" fn(ptr: *mut c_void, newSize: usize) -> *mut c_void>,
) -> i64

@brief This method determines how a search record relates to an existing entity.