pub unsafe extern "C" fn sqlite3_create_collation(
    arg1: *mut sqlite3,
    zName: *const c_char,
    eTextRep: c_int,
    arg2: *mut c_void,
    xCompare: Option<unsafe extern "C" fn(arg1: *mut c_void, arg2: c_int, arg3: *const c_void, arg4: c_int, arg5: *const c_void) -> c_int>
) -> c_int