pub unsafe extern "C" fn mdbx_cursor_scan(
cursor: *mut MDBX_cursor,
predicate: MDBX_predicate_func,
context: *mut c_void,
start_op: MDBX_cursor_op,
turn_op: MDBX_cursor_op,
arg: *mut c_void,
) -> c_int
pub unsafe extern "C" fn mdbx_cursor_scan(
cursor: *mut MDBX_cursor,
predicate: MDBX_predicate_func,
context: *mut c_void,
start_op: MDBX_cursor_op,
turn_op: MDBX_cursor_op,
arg: *mut c_void,
) -> c_int